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PDC Lab Manual

2013-01-02T08:30:00.002-08:00

Access Specifiers Or Access Modifiers in C#

2012-05-30T00:20:00.001-07:00

In encapsulation, before creating any types you must always consider scope of the type or visibility of the type. C# provides various number of keywords to decide the scope, those are private(default one), public, internal, protected and protected internal. If you create any type without these keywords, by default it will take as private.

Here we will discuss about each access specifier with an example. I created Class1.cs class which has several methods with the different access modifiers as shown below.

namespace AccessSpecifiers

{

public class Class1

{

public void display1()

{

Console.WriteLine("public Access Specifier");

}

private void display2()

{

Console.WriteLine("Private Access Specifier");

}

internal void display3()

{

Console.WriteLine("internal Access Specifier");

}

protected void display4()

{

Console.WriteLine("protected Access Specifier");

}

protected internal void display5()

{

Console.WriteLine("protected internal Access Specifier");

}

private Access Specifier or Modifier:

The scope of the private members is limited with in the Class or Structure in which they are defined. They are not accessible outside the Class or Structure.

In the attached example, we have display2() method which is defined as private in Access Specifiers project, Class1.cs class.

We tried to access this method in the Class2.cs class and Class3.cs class (which is derived from Class1.cs class). But it produces the error as AccessSpecifiers.Class1.display2() is inaccessible due to its protection level.

class Class2

{

void display()

{

Class1 obj = new Class1();

obj.display2(); //Error, because display2() is private

}

class Class3:Class1

{

void display()

{

display2(); //Error, because display2() is private

}

public Access Specifier or Modifier:

Public members have no access restriction. You can access public members by creating object, in derived class and with in the assembly and in other assemblies also.

We have display1() method which is defined as public in AccessSpecifiers project, Class1.cs class. We can access this method in Class2.cs class by creating object, in Class3.cs class which is derived from Class1.cs class and also in other assembly AccessSpecifiersTest also.

namespace AccessSpecifiers

{

class Class2

{

void display()

{

Class1 obj = new Class1();

obj.display1(); //No Error, because display1() public

}

namespace AccessSpecifiers

{

class Class3:Class1

{

void display()

{

display1(); //No Error, because display1() public

}

In other assembly AccessSpecifiersTest,

namespace AccessSpecifiersTest

{

class Program

{

static void Main(string[] args)

{

//try to access AccessSpecifier Assembly methods

AccessSpecifiers.Class1 obj = new AccessSpecifiers.Class1();

obj.display1(); //public method, No Error

}

protected Access Specifier or Modifier:

You cannot access protected members directly i.e., you cannot access protected members by creating object. You can access protected memebers in derived class only.

We have display4() method which is defined as protected in AccessSpecifiers project, Class1.cs class. We can access this method in Class3.cs class which is derived from Class1.cs class and elsewhere you cannot access this method.

namespace AccessSpecifiers

{

class Class2

{

void display()

{

Class1 obj = new Class1();

obj.display4(); //Error, because display4() is protected

}

namespace AccessSpecifiers

{

class Class3:Class1

{

void display()

{

display4(); //No Error, because display4() is protected

}

namespace AccessSpecifiersTest

{

class Program

{

static void Main(string[] args)

{

//try to access AccessSpecifier Assembly methods

AccessSpecifiers.Class1 obj = new AccessSpecifiers.Class1();

obj.display4();//Error, because display4() is protected

}

internal Access Specifier or Modifier:

Internal members are accessible with in the assembly only. You cannot access internal members outside of the assembly.

We have display3() method which is defined as internal in AccessSpecifiers project, Class1.cs class. We can access this method in Class2.cs class by creating object, in Class3.cs class which is derived from Class1.cs class. Because Class2.cs and Class3.cs classes are in the same assembly AccessSpecifiers. You cannot access display3() method other assembly AccessSpecifiersTest, it produces compile time error.

namespace AccessSpecifiers

{

class Class2

{

void display()

{

Class1 obj = new Class1();

obj.display3(); //No Error, because display3() is internal

}

namespace AccessSpecifiers

{

class Class3:Class1

{

void display()

{

display3(); //No Error, because display3() is internal

}

namespace AccessSpecifiersTest

{

class Program

{

static void Main(string[] args)

{

//try to access AccessSpecifier Assembly methods

AccessSpecifiers.Class1 obj = new AccessSpecifiers.Class1();

obj.display3();//Error, because display3() is internal

}

protected internal Access Specifier or Modifier:

Protected internal scope is addition of protected and internal scope. That means protected internal members are accessible in the derived class as well as with in the assembly.

We have display5() method which is defined as protected internal in AccessSpecifiers project, Class1.cs class. We can access this method in Class2.cs class by creating object, in Class3.cs class which is derived from Class1.cs class, but we cannot access in other assembly AccessSpecifiersTest.

namespace AccessSpecifiers

{

class Class2

{

void display()

{

Class1 obj = new Class1();

obj.display5(); //No Error, because display5() is protected internal

}

namespace AccessSpecifiers

{

class Class3:Class1

{

void display()

{

display5(); //No Error, because display5() is protected internal

}

namespace AccessSpecifiersTest

{

class Program

{

static void Main(string[] args)

{

//try to access AccessSpecifier Assembly methods

AccessSpecifiers.Class1 obj = new AccessSpecifiers.Class1();

obj.display5();//Error, because display5() is protected internal

}

Windows 8 makes it easier for parents to track kids‘ internet usage

2012-05-27T23:32:00.001-07:00

Microsoft's Family Safety tool helps parents limit site usage

Microsoft's Windows 8 will include a brand new suite of tools to help parents keep track of what their kids are doing on the internet.

The Windows 8 Family Safety toolset will send weekly usage reports about the sites that have been visited, and will allow parents to block specific websites and apps, set time limits for usage, lock search engines into strict SafeSearch, and track Windows Store purchases.

All of this can be done through a parent's administrator account, so the kids don't have access to the information and tools.

The reports aren't limited to a single device, either, instead collecting information on websites visited, time spent on each website, search histories, and apps and games usage from every device a child uses his or her Windows account on.The administrator is meant to set up separate accounts for each child so they can keep track of exactly who is doing what.

Microsoft has some parenting advice

"Computers give children access to many positive experiences; however, parents face challenges in monitoring what their children see online, the people they meet, and the information they share," said Phil Sohn, Microsoft's senior program manager for family safety, in a blog post.

"Parenting techniques like this are important, but they may be difficult to employ if your household has multiple PCs or if your kids use laptops and tablets. And glancing over a teenager's shoulder can be awkward for both parents and kids," he continued.

Sohn said the purpose of using individual Windows accounts for each family member isn't solely to monitor what they're doing online.

"It is also a great way for each family member to maintain their own unique online identity while still sharing a single PC," he said.

He believes that the simplicity of the new Windows 8 Family Safety tools will cause more parents to readily use them.

No Java Required: Write Android Apps in C#

2012-05-21T22:54:00.002-07:00

No Java Required: Write Android Apps in C#

XobotOS is a Xamarin-developed project that translated millions of lines of Java to C#.

By Keith Ward
05/11/2012

Java is the underlying code for the Android OS. But one company has changed all that, ripping out most of the Java and replacing it with C#.

That means .NET developers can code in a familiar language and produce apps that leverage C#'s advantages, including speed increases.

It started as a skunkworks project for Xamarin. Xamarin's claim to fame is Mono, an open-source framework allowing Android and iOS apps to be built using C# running on top of Java. Now, with what the company calls the XobotOS Research Project, the Java layer has been removed via a "machine translation of Android from Java to C#," according to ablog post from Xamarin CTO Miguel de Icaza.

Building XobotOS involved converting more than a million lines of Java code into C#, de Icaza wrote. A tool called Sharpen was used to help in the translation, and the project resulted in an improved version of Sharpen, de Icaza says. Most of Androids layouts and controls, de Icaza says, have been converted, and to demonstrate, the post includes a Java-free screenshot of XobotOS running on a Linux desktop.

In terms of speed improvements, the blog includes a bar chart of a benchmark from a simple binary tree implementation in Java and C#. The chart shows a huge increase in performance between the two languages.

Xamarin has made XobotOS available on github. de Icaza says that XobotOS won't be "a focus" going forward, as the company wants to put its efforts toward its core products, Mono for Android and MonoTouch.

One other possible benefit of using XobotOS for Android development is that it would eliminate the kind of potential legal entanglements that Google finds itself in with Oracle, the patent-holder for Java. Replacing Java with C# would, of course, inoculate developers from the clutches of Oracle's lawyers.

About the Author

Keith Ward is the editor in chief of Visual Studio Magazine.

Ajax Control Toolkit May 2012 Release

2012-05-20T22:22:00.001-07:00

Ajax Control Toolkit May 2012 Release

I’m happy to announce the May 2012 release of the Ajax Control Toolkit. This newest release of the Ajax Control Toolkit includes a new file upload control which displays file upload progress. We’ve also added several significant enhancements to the existing HtmlEditorExtender control such as support for uploading images and Source View.

You can download and start using the newest version of the Ajax Control Toolkit by entering the following command in the Library Package Manager console in Visual Studio:

Install-Package AjaxControlToolkit

Alternatively, you can download the latest version of the Ajax Control Toolkit from CodePlex:

http://AjaxControlToolkit.CodePlex.com

The New Ajax File Upload Control

The most requested new feature for the Ajax Control Toolkit (according to the CodePlex Issue Tracker) has been support for file upload with progress. We worked hard over the last few months to create an entirely new file upload control which displays upload progress.

Here is a sample which illustrates how you can use the new AjaxFileUpload control:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="01_FileUpload.aspx.cs" Inherits="WebApplication1._01_FileUpload" %>

<html>

<head runat="server">

    <title>Simple File Upload</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

    <ajaxToolkit:ToolkitScriptManager runat="server" />

    <ajaxToolkit:AjaxFileUpload

        id="ajaxUpload1"

        OnUploadComplete="ajaxUpload1_OnUploadComplete"

        runat="server"  />

    </div>

    </form>

</body>

</html>

The page above includes a ToolkitScriptManager control. This control is required to use any of the controls in the Ajax Control Toolkit because this control is responsible for loading all of the scripts required by a control.

The page also contains an AjaxFileUpload control. The UploadComplete event is handled in the code-behind for the page:

namespace WebApplication1

{

    public partial class _01_FileUpload : System.Web.UI.Page

    {

        protected void ajaxUpload1_OnUploadComplete(object sender, AjaxControlToolkit.AjaxFileUploadEventArgs e)

        {

            // Generate file path

            string filePath = "~/Images/" + e.FileName;

            // Save upload file to the file system

            ajaxUpload1.SaveAs(MapPath(filePath));

        }

    }

}

The UploadComplete handler saves each uploaded file by calling the AjaxFileUpload control’s SaveAs() method with a full file path.

Here’s a video which illustrates the process of uploading a file:

Warning: in order to write to the Images folder on a production IIS server, you need Write permissions on the Images folder. You need to provide permissions for the IIS Application Pool account to write to the Images folder. To learn more, see:

http://learn.iis.net/page.aspx/624/application-pool-identities/

Showing File Upload Progress

The new AjaxFileUpload control takes advantage of HTML5 upload progress events (described in the XMLHttpRequest Level 2 standard). This standard is supported by Firefox 8+, Chrome 16+, Safari 5+, and Internet Explorer 10+. In other words, the standard is supported by the most recent versions of all browsers except for Internet Explorer which will support the standard with the release of Internet Explorer 10.

The AjaxFileUpload control works with all browsers, even browsers which do not support the new XMLHttpRequest Level 2 standard. If you use the AjaxFileUpload control with a downlevel browser – such as Internet Explorer 9 — then you get a simple throbber image during a file upload instead of a progress indicator.

Here’s how you specify a throbber image when declaring the AjaxFileUpload control:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="02_FileUpload.aspx.cs" Inherits="WebApplication1._02_FileUpload" %>

<html>

<head id="Head1" runat="server">

    <title>File Upload with Throbber</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

    <ajaxToolkit:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" />

    <ajaxToolkit:AjaxFileUpload

        id="ajaxUpload1"

        OnUploadComplete="ajaxUpload1_OnUploadComplete"

        ThrobberID="MyThrobber"

        runat="server"  />

        <asp:Image

            id="MyThrobber"

            ImageUrl="ajax-loader.gif"

            Style="display:None"

            runat="server" />

    </div>

    </form>

</body>

</html>

Notice that the page above includes an image with the Id MyThrobber. This image is displayed while files are being uploaded.

I use the website http://AjaxLoad.info to generate animated busy wait images.

Drag-And-Drop File Upload

If you are using an uplevel browser then you can drag-and-drop the files which you want to upload onto the AjaxFileUpload control. The following video illustrates how drag-and-drop works:

Remember that drag-and-drop will not work on Internet Explorer 9 or older.

Accepting Multiple Files

By default, the AjaxFileUpload control enables you to upload multiple files at a time. When you open the file dialog, use the CTRL or SHIFT key to select multiple files.

If you want to restrict the number of files that can be uploaded then use the MaximumNumberOfFiles property like this:

<ajaxToolkit:AjaxFileUpload

    id="ajaxUpload1"

    OnUploadComplete="ajaxUpload1_OnUploadComplete"

    ThrobberID="throbber"

    MaximumNumberOfFiles="1"

    runat="server"  />

In the code above, the maximum number of files which can be uploaded is restricted to a single file.

Restricting Uploaded File Types

You might want to allow only certain types of files to be uploaded. For example, you might want to accept only image uploads. In that case, you can use the AllowedFileTypes property to provide a list of allowed file types like this:

<ajaxToolkit:AjaxFileUpload

    id="ajaxUpload1"

    OnUploadComplete="ajaxUpload1_OnUploadComplete"

    ThrobberID="throbber"

    AllowedFileTypes="jpg,jpeg,gif,png"

    runat="server"  />

The code above prevents any files except jpeg, gif, and png files from being uploaded.

Enhancements to the HTMLEditorExtender

Over the past months, we spent a considerable amount of time making bug fixes and feature enhancements to the existing HtmlEditorExtender control. I want to focus on two of the most significant enhancements that we made to the control: support for Source View and support for uploading images.

Adding Source View Support to the HtmlEditorExtender

When you click the Source View tag, the HtmlEditorExtender changes modes and displays the HTML source of the contents contained in the TextBox being extended. You can use Source View to make fine-grain changes to HTML before submitting the HTML to the server.

For reasons of backwards compatibility, the Source View tab is disabled by default. To enable Source View, you need to declare your HtmlEditorExtender with the DisplaySourceTab property like this:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="05_SourceView.aspx.cs" Inherits="WebApplication1._05_SourceView" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>

<head id="Head1" runat="server">

    <title>HtmlEditorExtender with Source View</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

    <ajaxToolkit:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" />

    <asp:TextBox

        id="txtComments"

        TextMode="MultiLine"

        Columns="60"

        Rows="10"

        Runat="server" />

    <ajaxToolkit:HtmlEditorExtender

        id="HEE1"

        TargetControlID="txtComments"

        DisplaySourceTab="true"

        runat="server"  />

    </div>

    </form>

</body>

</html>

The page above includes a ToolkitScriptManager, TextBox, and HtmlEditorExtender control. The HtmlEditorExtender extends the TextBox so that it supports rich text editing.

Notice that the HtmlEditorExtender includes a DisplaySourceTab property. This property causes a button to appear at the bottom of the HtmlEditorExtender which enables you to switch to Source View:

Note: when using the HtmlEditorExtender, we recommend that you set the DOCTYPE for the document. Otherwise, you can encounter weird formatting issues.

Accepting Image Uploads

We also enhanced the HtmlEditorExtender to support image uploads (another very highly requested feature at CodePlex). The following video illustrates the experience of adding an image to the editor:

Once again, for backwards compatibility reasons, support for image uploads is disabled by default. Here’s how you can declare the HtmlEditorExtender so that it supports image uploads:

<ajaxToolkit:HtmlEditorExtender

    id="MyHtmlEditorExtender"

    TargetControlID="txtComments"

    OnImageUploadComplete="MyHtmlEditorExtender_ImageUploadComplete"

    DisplaySourceTab="true"

    runat="server" >

    <Toolbar>

        <ajaxToolkit:Bold />

        <ajaxToolkit:Italic />

        <ajaxToolkit:Underline />

        <ajaxToolkit:InsertImage />

    </Toolbar>

</ajaxToolkit:HtmlEditorExtender>

There are two things that you should notice about the code above. First, notice that an InsertImage toolbar button is added to the HtmlEditorExtender toolbar. This HtmlEditorExtender will render toolbar buttons for bold, italic, underline, and insert image.

Second, notice that the HtmlEditorExtender includes an event handler for the ImageUploadComplete event. The code for this event handler is below:

using System.Web.UI;

using AjaxControlToolkit;

namespace WebApplication1

{

    public partial class _06_ImageUpload : System.Web.UI.Page

    {

        protected void MyHtmlEditorExtender_ImageUploadComplete(object sender, AjaxFileUploadEventArgs e)

        {

            // Generate file path

            string filePath = "~/Images/" + e.FileName;

            // Save uploaded file to the file system

            var ajaxFileUpload = (AjaxFileUpload)sender;

            ajaxFileUpload.SaveAs(MapPath(filePath));

            // Update client with saved image path

            e.PostedUrl = Page.ResolveUrl(filePath);

        }

    }

}

Within the ImageUploadComplete event handler, you need to do two things:

1) Save the uploaded image (for example, to the file system, a database, or Azure storage)

2) Provide the URL to the saved image so the image can be displayed within the HtmlEditorExtender

In the code above, the uploaded image is saved to the ~/Images folder. The path of the saved image is returned to the client by setting the AjaxFileUploadEventArgs PostedUrl property.

Not surprisingly, under the covers, the HtmlEditorExtender uses the AjaxFileUpload. You can get a direct reference to the AjaxFileUpload control used by an HtmlEditorExtender by using the following code:

void Page_Load()

{

    var ajaxFileUpload = MyHtmlEditorExtender.AjaxFileUpload;

    ajaxFileUpload.AllowedFileTypes = "jpg,jpeg";

}

The code above illustrates how you can restrict the types of images that can be uploaded to the HtmlEditorExtender. This code prevents anything but jpeg images from being uploaded.

Summary

This was the most difficult release of the Ajax Control Toolkit to date. We iterated through several designs for the AjaxFileUpload control – with each iteration, the goal was to make the AjaxFileUpload control easier for developers to use. My hope is that we were able to create a control which Web Forms developers will find very intuitive.

Article Source:

http://stephenwalther.com/blog/archive/2012/05/01/ajax-control-toolkit-may-2012-release.aspx

'Operation is not valid due to the current state of the object' error during postback

2012-05-19T00:13:00.000-07:00

'Operation is not valid due to the current state of the object' error during postback

I had a aspx page which was working well, but suddenly I am getting the error "Operation is not valid due to the current state of the object." whenever a postback is done.

The stack trace is:

at System.Web.HttpValueCollection.ThrowIfMaxHttpCollectionKeysExceeded()
at System.Web.HttpValueCollection.FillFromEncodedBytes(Byte[] bytes, Encoding encoding)
at System.Web.HttpRequest.FillInFormCollection()

Solution:

<appSettings>
<add key="aspnet:MaxHttpCollectionKeys" value="10000" />

</appSettings>

Free Open Source UML Tools

2012-05-16T00:49:00.002-07:00

"UML is not dessert topping and floor wax." - Grady Booch on the versatility of UML.

UML as you know, includes a set of graphic notation techniques that helps you specify, visualize, and document models of software systems, including their structure and design, in a way that meets all of these requirements. There are many popular professional diagramming tools like Visio available in the market. Depending on your need, sometimes you don’t really need commercial tools to generate UML diagrams. This article contains some Good Open Source UML tools that might do the job for you for free.

StarUML - StarUML is an open source project to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal of the StarUML project is to build a software modeling tool and also platform that is a compelling replacement of commercial UML tools

Check it’s features here

ArgoUML - ArgoUML is the leading open source UML modeling tool and includes support for all standard UML 1.4 diagrams. It runs on any Java platform and is available in ten languages.

Check its features here.

Violet UML Editor - Draws nice-looking diagrams. Completely free. Cross-platform.Violet is intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly.

Check its features here.

Astah Community 6.1 (Previously JUDE)- Based on the concept of "Usable from the moment of installation", the modeling features of astah community have been designed to be simple and user friendly.

Check its features here

BOUML - BOUML is a free UML 2 tool box allowing you to specify and generate code in C++, Java, Idl,Php and Python. BOUML runs under Unix/Linux/Solaris, MacOS X(Power PC and Intel) and Windows.

Check its features here.

UMLet 10.4 - UMLet is an open-source UML tool with a simple user interface: draw UML diagrams fast, export diagrams to eps, pdf, jpg, svg, and clipboard, share diagrams using Eclipse, and create new, custom UML elements. UMLet runs stand-alone or as Eclipse plug-in on Windows, OS X and Linux.

Check its features here

UMLGraph - UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an ongoing effort aiming to provide support for all types UML diagrams.

Check its features here

Dia - Dia is a GTK+ based diagram creation program for GNU/Linux, Unix and Windows released under the GPL license. Dia is roughly inspired by the commercial Windows program 'Visio', though more geared towards informal diagrams for casual use. It can be used to draw many different kinds of diagrams.

Check its features here.

MetaUML - MetaUML is a GNU GPL MetaPost library for typesetting UML diagrams, using a human-friendly textual notation.

UML Modeling Tools for IDE’s

Here are some community edition modeling tools available for popular IDE’s.

Visual Paradigm SDE for Visual Studio - Smart Development Environment Community Edition for Visual Studio (SDE-VS CE) fully supports the latest version of UML. Open source projects' developers can use SDE-VS CE to design system with UML. SDE-VS CE is free non-commercial use only. SDE-VS is embedded in Visual Studio

Check its features here.

T4 Editor plus UML modeling Tools for Visual Studio (2008/2010) - Quickly write your own Code Generator via T4 Text-Templates (.tt-Files) with Intelli-Sense & Syntax-Highlighting. tangible T4 Editor also comes with UML-Style modelingtools and can generate from diagrams, database schemas, xml, word, excel sources, or any other data source. Microsoft T4 looks and smells like ASP.NET - it is simple!

Check its features here

NetBeans IDE UML - The UML plugin for the NetBeans IDE is available for version 6.7 and earlier releases.

Check its features here

Eclipse UML2 Tools - UML2 Tools is a set of GMF-based editors for viewing and editing UML models; it is focused on (eventual) automatic generation of editors for all UML diagram types

Check its features here

Some Online UML Diagram Generators

Here are some free web based diagram generators

WebSequenceDiagram - Just enter the description here, and click "draw"

yUML - Create and share simple UML diagrams in your blogs, wikis, forums, bug-trackers and emails

zOOml - zOOml.com is the Web 2.0 site for rapid object-oriented modeling. It's easy to create a model withzOOml.com's Modeler web application, a drawing tool for illustrating classes, associations and other concepts in OMG's UML modeling language.

Eastern Software Systems Private Ltd

2012-05-14T05:37:00.000-07:00

Eastern Software Systems Private Ltd:

Openings for Software Engineers : BE / B.Tech : EASTERN SOFTWARE SYSTEMS @ NCR:

Eastern Software Systems is the top Indian ERP Company in the mid-market segment. A CMM Level 5 company, ESS is well known for its ERP 'ebizframe'. Headquartered in Delhi, ESS has offices in major cities of India and also has overseas presence in Africa, Mauritius, Gulf and SE Asia. ESS also provides Onsite/Offshore Software Services and Total IT Outsourcing Solutions.

(Freshers) BE / B.Tech : Software Engineers @ Noida

Job Position : Software Engineer

Job Designation : Software Developer

Job Category : IT / Software

Job Location : Noida, NCR

Compensation : INR 2,00,000 - 3,00,000 P.A

Number of Vacancies : 15

Desired Education : BE / B.Tech (CS/IT)

Desired Experience : 0 Years

Desired Skills :
• Urgently looking for B.E. /B.Tech (C.S./I.T.) freshers who have good communication skills & who are presentable.
• Only male candidates should apply
• Candidates who are applying should have passport or who must have applied for it.

Amazon Development Centre India Private Limited

2012-05-14T05:36:00.001-07:00

Amazon Development Centre India Private Limited:

Openings for Support Engineers : BE / B.Tech : AMAZON INDIA @ Hyderabad

Amazon has come a long way since opening on the World Wide Web in July 1995. Today, we operate retail websites in multiple countries across geographies, offering products in many categories (books, media, digital, electronics etc.) worldwide, and we still like to work hard, have fun and make history! The Amazon.com brand has become synonymous with a superior level of convenience, selection, low prices, and customer service. We have over 130 million active customers as of 2010

(0-1 Years) BE / B.Tech : 2011 Passouts : Support Engineers @ Hyderabad

Job Position : Support Engineer

Job Designation : Trainee/Software Engineer/Programmer

Job Category : IT / Software

Job Location : Hyderabad, Andhra Pradesh

Desired Education :
• BE/B.Tech in Computer Science or a related field
• 2011 Batch
• Candidates with Pass Percentage of 60% and above only can apply

Desired Experience : 0 to 1 Years

Key Skills : C++, JAVA, Unix, SQL

Job Qualifications :
• B.E./B.Tech in Computer Science or a related field.
• Object oriented experience in C++ and/or Java.
• Knowledge of the UNIX/Linux operating system.
• Other desired technical skills include Perl, Ruby, Oracle SQL.
• Proven ability to troubleshoot and identify the root cause of issues.
• Demonstrates skill and passion for operational excellence.
• Excellent documentation skills

Job Description: Support Engineer - Consultant :
• The FC Systems Team is looking for a Software Support Engineer - Consultant/Contractor who will act as first level support to work on configuration changes for FC applications, host management, along with other operational issues and activities related to FC application setup and optimization.
• Your solutions will impact our customers directly! This job requires you to constantly hit the ground running and your ability to learn quickly and work on disparate and overlapping tasks will define your success. High Impact production issues often require coordination between multiple Development, Operations and IT Support groups, so you get to experience a breadth of impact with various groups.
• Primary responsibilities include configuration changes, testing, troubleshooting, diagnosing and fixing production software issues, developing monitoring solutions, performing software maintenance and configuration, implementing the fix for internally developed code (Perl, Ruby, C/C++, JAVA), performing SQL queries, updating, tracking and resolving technical challenges. Responsibilities also include working alongside development on Amazon Corporate and Divisional Software projects, updating/enhancing our current software, automation of self serv processes and documentation of our systems.
• The ideal candidate must be detail oriented, have superior verbal and written communication skills, strong organizational skills, able to juggle multiple tasks at once, able to work independently and can maintain professionalism under pressure. You must be able to identify problems before they happen and implement solutions that detect and prevent outages. You must be able to accurately prioritize projects, make sound judgments, work to improve the customer experience, and get the right things done.

Note : Candidates with Pass Percentage of 60% and Above only can apply.

Walk-in @ TCS For Freshers & Experienced - B.E / BTech - On 14th May 2012

2012-05-14T05:35:00.001-07:00

Company Name : Tata Consultancy Services (TCS)

Website : www.tcs.com

Education : B.E / BTech

Experience : 0 – 2 Years

Location : Chennai

Job Role : Testing Engineer

Job Description :

TCS Hiring ISTQB Certified Profs for Technology, Walk in On 14th May 2012, Monday @ Spencer’s Chennai

Knowledge / Experience:

• Any B.E/ B .Tech FRESHER (2010/2011) with ISTQB certification are eligible to apply .

• M.E/ M.Tech/Msc / MCA are not eligible.

• Ready to work in shifts.

Note: It is mandatory to mention (Fathima. HR TCS) name on top of the resume while coming for the interview.allindiajobs.in

Eligibility Criteria:

• Minimum 15yrs of regular education.

• Should not have more than 2 years of gap in education..

• Should not have any backlogs.

Walk-in Details:

Walk-in Day & Date: Monday (14-5-12), Walk-in Time: 11 .30 AM to 2.00 PM

Walk-in Venue:

9th floor, TCS e-Serve Ltd

Spencer Plaza , 3rd Phase, 769

Anna Salai, Chennai – 2

Freshers Walk-in @ Subex On 21st May 2012 - Freshers 2011 Batch

2012-05-14T05:34:00.002-07:00

Freshers Walk-in @ Subex On 21st May 2012 - Freshers 2011 Batch

Company Name:       Subex Limited

Website:                  www.subexworld.com

Experience:              Freshers 2011 Batch

Location:            Bangalore

Job Role:                  Trainee Freshers

Eligibility Criteria:

1. BSC/BCA 2011 Pass-out with Minimum Aggregate Of 65%.

Note: BE/B Tech/MCA/MBA not eligible

Desired Candidate Profile:

1. Should have strong logical, analytical and problem solving skills.

2. Should possess good communication and Interpersonal skills.

3. Should be eager to explore new areas.

4. Should be self motivated and enthusiastic.

5. Should be a good team player.

Desired Skills:

1. Testing Fundamentals.

2. Database and SQL.

3. Unix and Scripting

Walk-in Details:

Date & Time: 21st May 2012 between 9:30 AM to 10:00 AM to below venue.

Walk-in Venue:

Subex Limited, Adarsh Tech Park,

Outer Ring Road, Devarabisannalli,

Bangalore - 560037, India.

Land mark: Next to Intel Building

Contact Person: Lakshmi

How To Get DropDownList Selected Item Index using JQuery

2012-05-10T03:29:00.000-07:00

You have a ASP.NET DropDownList control on page and you want to get its selected item index using
JQuery. You can using following code snippet.

Here is the code for DropDownList control.
<asp:DropDownList ID="DropDownList1" runat="server" >
   <asp:ListItem Value="1">Germany</asp:ListItem>
   <asp:ListItem Value="2">France</asp:ListItem>
   <asp:ListItem Value="3">Brazil</asp:ListItem>
</asp:DropDownList>
Following JQuery code snippet will give you selected item index from the above DropDownList control.
var index = $("#DropDownList1").get(0).selectedIndex;

How To Get DropDownList Selected Value using JQuery

2012-05-10T03:28:00.004-07:00

You have a ASP.NET DropDownList control on page and you want to get selected item value using
JQuery. You can using following code snippet.

Here is the code for DropDownList control.
<asp:DropDownList ID="DropDownList1" runat="server" >
   <asp:ListItem Value="1">Germany</asp:ListItem>
   <asp:ListItem Value="2">France</asp:ListItem>
   <asp:ListItem Value="3">Brazil</asp:ListItem>
</asp:DropDownList>
Following JQuery code snippet will give you selected country value from the above DropDownList
control.
var countryId = $("#DropDownList1 option:selected").val();

How to Count Total Items in DropDownList using JQuery

2012-05-10T03:28:00.001-07:00

You have a DropDownList control and you want to count the total number of items in the
DropDownList using JQuery. You can using following JQuery code snippet.

Here is the code for DropDownList control.
<asp:DropDownList ID="DropDownList1" runat="server" >
   <asp:ListItem Value="1">Germany</asp:ListItem>
   <asp:ListItem Value="2">France</asp:ListItem>
   <asp:ListItem Value="3">Brazil</asp:ListItem>
</asp:DropDownList>
Following JQuery code snippet will give you total number of items in the above DropDownList control.
var items = $("#DropDownList1 option").length;

How To Get DropDownList Selected Text using JQuery

2012-05-10T03:27:00.001-07:00

You have a ASP.NET DropDownList control on page and you want to get its selected text using
JQuery. You can using following code snippet.

Here is the code for DropDownList control.
<asp:DropDownList ID="DropDownList1" runat="server" >
   <asp:ListItem Value="1">Germany</asp:ListItem>
   <asp:ListItem Value="2">France</asp:ListItem>
   <asp:ListItem Value="3">Brazil</asp:ListItem>
</asp:DropDownList>
Following JQuery code snippet will give you selected country name from the above DropDownList
control.
var country = $("#DropDownList1 option:selected").text();

How to make ASP.NET GridView emit proper tags

2012-05-03T01:44:00.000-07:00

I know I know, ASP.NET WebForms is a passe and MVC is the king of the ring, but if you, like me, still have to work with legacy WebForm components then more often than not you’ll need to use the GridView control. When using GridView control if you want to use jQuery and jQuery plugins to jazz up your grid, you’ll hit a wall because the GridView control emit straight <td> <tr> instead of the more ‘compliant’ <thead> <tr> <th> and <tbody> <tr> <td>

As a result most jQuery plugin’s don’t work. I was despairing at this thought when I came across this article on www.dotnetcurry.com

The article demonstrates tips and tricks with GridView, but it had the hidden gem of how to get the GridView to render <thead> tags. Recipe is simple, handle the GridView’s PreRender event and put the following code in

1if (myGridView.Rows.Count > 0)

2{

3 myGridView.UseAccessibleHeader = true;

4 myGridView.HeaderRow.TableSection = TableRowSection.TableHeader;

5}

With this done, the whole wide world of jQuery goodness opens up. In the following example I use the DataTables plug-in to add a nifty search functionality and frozen header and vertical scrolling.

Example

We will create a new ASP.NET web application and use the DataTables jQuery plugin to jazz up our grid view control.

Step 1 – Getting Started

Fire up Visual Studio (whichever version you have) and create a new ASP.NET Web Application

Step 2 – Finding a Data Source (ignore this and Step 3 if you already have a data source handy)

In Solution Explorer, right click on App_Data folder and select Add Existing Item. I have SQL Server compact edition installed which installs the NorthwindDB.sdf file in the following folder location

C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v4.0\Samples\Northwind.sdf

If you don’t have Compact Edition 4.0 you can download it from here

Step 3 – Connecting to Northwind database

Bring up Server Explorer and double click on Northwind.sdf to connect to it. Change the header to something like “Products From Northwind Database” and remove the other default paragraphs.

Step 4 – Add the GridView

Double click on Default.aspx to open the designer. Switch to Split or Design mode and Drag and Drop the GridView control

Step 5 – Do the magic to render proper table tags

Change the Name of the gridview to jqDemoGridView. Add a PreRender event handler and place the above code in the event handler to ensure the GridView emits proper table tags in HTML.

Step 6 – Get the scripts

a. If you are using derivatives of Visual Studio 2010 your project should come with jQuery included by default under the Scripts folder. I got version 1.4.1 with my project. You can get the latest version from here and place it in your Scripts folder.

b. Next we will get the DataTables plugin scripts from here (~8Mb).
Download the zip file and extract it. Open Windows Explorer and navigate to the extracted folder. There should be three folders from the zip, examples, extras and media.

c. From the media folder select the images and js folder and press Ctrl+C to copy them
Go to Visual Studio, select the Scripts folder in Solution Explorer and press Ctrl+V to add the folders.

d. From the media\css folder select all the css files and paste it in Solution View’s Styles folder.

e. From the examples\example_support\themes\smoothness folder copy the jquery-ui-1.8.4.custom.css and the images folder. Paste is under Sytles folder

f. Exclude the jquery.dataTables.js, jquery.js and jquery.dataTables.min.js.gz files. The rest of the files are enough. (the .min.js version is minified meaning it doesn’t have any kind of whitespaces and reduced in size as much as possible. It’s not at all readable so if you want to go through the js to understand it, use the non-minified version) Your solution explorer should looks something like the following.

Step 7 – Connect to Data Source

I will connect to the above data using the Entity Data Source. You can select your own data connection mechanism. Basically the idea is to get the GridView populated with enough data that requires a vertical scrollbar. If you are using SQL CE 4.0 like me follow along.

a. Right Click on Solution Explorer and Select Add New Item. Select Data from the Installed Templates and ADO.Net Entity Data Model. Name it NorthwindModel.edmx

b. Select the default ‘Generate from Database’ and click Next.

c. If Northwind.sdf connection was open it will select it by default and the next screen should look something like the following.

d. The Wizard will connect to the DB and load up the schema. Select all the tables and click Finish.

e. Save solution and do a ‘Build All’.

Step 7 – Tie the GridView to the data source

a. In the designer click on the GridView smart tag and bring up the Choose Data Source Dialog

b. Click Ok to bring up the Configure ObjectContext wizard. It should select the NorthwindEntites connection it created while building the data source by default. If you named it differently in Step 6.c. select the name that you gave it. The DefaultContainerName will come up automatically once you select the Named Connection. Click Next.

c. Select the EntitySetName (table) that you want to show. I’ve selected the Products table and opted to show all the columns. You can pick and choose. As of now we are not doing any Inserts/Updates or Deletes, keep them unchecked. Click Finish

If you run your application at this point you will see the grid populated with data from the products table. Just for kicks right click on the browser to bring up source, you will see the <thread><tr><th> rendering for the table in the final HTML. So far so good.

Step 8 – Bring in the jQuery Goodies

Here comes the fun part now. Let’s tie up our grid with jQuery and datatables goodness.

a. Open Site.Master and drag and drop the demo_table_jui.css from the Scripts\css folder on to the header area

b. Open the Default.aspx and in the BodyContent area, drop the jQuery script file and the jquery.dataTables.min.js file.

1<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>

2<script src="Scripts/js/jquery.dataTables.min.js" type="text/javascript"></script>

c. Add the following script to apply the plugin to the GridView

01<script type="text/javascript" charset="utf-8">

02 $(document).ready(function ()

03 {

04   $('#<%= jqDemoGridView.ClientID %>').dataTable({

05           "bJQueryUI": true,

06           "bPaginate": false,

07           "bLengthChange": false,

08           "bFilter": true,

09           "bSort": true,

10           "bAutoWidth": false,

11           "sScrollY": 300,

12           "sScrollX": "100%",

13           "sScrollXInner": "110%"

14      });

15 });

16</script>

The dataTable method is taking an object as a parameter. The object is defined in JSON. Let’s look at each parameter and try to get what it is
i. bJqueryUI : A boolean parameter indicating if JqueryUI should be used to beautify the grid. We set it to true
ii. bPaginate: A boolean parameter indicating if pagination should be enabled. We set it to false to force vertical scrollbars
iii. bLengthChange: A boolean parameter (not sure what it does, it’s set to false in our code).
iv. bFilter: A boolean parameter indicating if Filtering should be enabled. We set it to true.
v. bSort: A boolean parameter indicating if Sorting should be enabled. We set it to true.
vi. bAutoWidth: A boolean parameter indicating if datatables should try to set the width of the columns. We set it to false
vii. sScrollY: A integer parameter indicating the fixed height of the table. Scrolling is enabled after rows of data exceed this height.
viii. sScrollX and sScrollXInner: Parameters that help enable horizontal scrolling.

For a complete reference to possible parameters refer to DataTables’ excellent documentation on their site. A quick reference guide is available here
Clean up the Default.aspx by removing the default messages and run the application.

Lo and behold!

Step 9 – Playing around with the ‘jQuerified Grid’

a. Type in Anton in the search text box and see the grid filter data down to 2 rows of data showing Chef Anton

b. Click on any of the headers and watch the grid get sorted without any postback (entirely on the client side)

c. Scroll horizontally and vertically and see how the headers remain aligned.

In Conclusion

We started off with the small goal of figuring out how to emit thead for a GridView control and ended up applying a jQuery plugin to add rich client side functionality thanks to the proper rendering of thead and tbody tags. This opens up a vast playground for jQuery enabled ASP.NET sites with interactive GridView. Notice we haven’t used Microsoft’s Ajax Control Tool Kit anywhere. Though I have used DataTables and jquery and Ajax Control Toolkit all in the same page and they do work together. But that’s another story. I am trying to make a clean break from ACT and do things in jQuery only. Hopefully sometime soon, I’ll be able to demonstrate use of more jQuery plugins with more functionality like Edit/Update/Delete from the grid view control.

The entire source code including the Northwind.sdf file is uploaded here (hosted on SkyDrive – 714KB download size).

This code uses DataTables.net which is released under GPL v2. Please respect open source licensing model. Whatever little I have written is made available As Is.

Have fun coding!

BIO INFORMATICS - III B.Tech II Semester Supplymentary Examinations,AUGUST 2007

2012-04-27T01:24:00.001-07:00

JNTU old question papers 2007

BIO INFORMATICS - IV B.Tech II Semester Examinations,AUGUST 2011

2012-04-27T01:05:00.000-07:00

Code No: 07A81204 R07 Set No. 2

IV B.Tech II Semester Examinations,AUGUST 2011
BIO INFORMATICS
Information Technology

Time: 3 hours Max Marks: 80

Answer any FIVE Questions
All Questions carry equal marks

? ? ? ? ?

1. Explain the applications of multiple sequence alignments. [16]

2. Discuss about the significance of using scoring matrices in sequence alignment.[16]

3. Write short notes on:
(a) Russel Wallace
(b) Charles Darwin. [8+8]

4. Discuss the applications of PDB files with one example. [16]

5. Discuss the search parameter criteria in Swissprot with one example. [16]

6. What is Bioinformatics? Describe its scope in modern biology? [16]

7. Describe in brief about the tool SWISS MODELLER available at EXPASY with
one example. [16]
8. Write short notes on:
(a) Positional cloning approach.
(b) Candidate Gene approach. [8+8]

***********

Credit Card Agreements Easier to Understand Than Facebook, Google Policies

2012-04-26T20:36:00.000-07:00

Just how complex are those user agreements that most people skip reading when they sign up for Facebook or Google?

More complex than a credit card agreement or a government notice, according to a study released Tuesday by branding firm Siegel+Gale. On average, 400 survey participants who had carefully reviewed the agreements were only able to answer four out of 10 comprehension questions about the policies after their review.

What's worse, of users who did understand the policies or had them explained to them, 75% said they would change their Facebook privacy settings and 63% said they would be more careful about how they used Google in the future.

'It's time for these online giants to recognize that their policies bring an unacceptable web of complexity and risk to the lives of their users. The lack of understanding of online privacy is pervasive,' said Thomas Mueller, global director of customer experience of Siegel+Gale. 'Bringing greater simplicity to what Web users read online will engender trust among users and only benefit Facebook's and Google's reputation.'

Among the study's other key findings:

The comprehension rates for credit card agreements (70%) and government notices (67%) were far higher than those for Google (36%) and Facebook (39%).

Just one in five Facebook users were able to figure out how to block a third-party application or website from accessing information they shared on Facebook after reading the social network's privacy policy.

Less than one in four Google+ users could figure out whether their profile was publicly viewable to anyone after reading Google's privacy terms.

All of these issues are compounded by the fact that privacy policies, particularly those used by social networks, are ever-evolving and ever-changing. Even if a user can understand a privacy policy, it can - especially in the case of Facebook - change without their knowledge.

'This complexity erodes trust and jeopardizes online privacy,' said Irene Etzkorn, executive director of simplification of Siegel+Gale. 'Clearly, Facebook, Google and other online service providers operate based on consumer trust, and failure to address privacy concerns in a meaningful way will lead to consumer disenchantment and additional regulatory restrictions.'

State Bank of India launches virtual debit card to curb fraud in ecommerce transactions

2012-04-25T01:30:00.003-07:00

The State Bank of India (SBI) has introduced a virtual debit card called State Bank Virtual to address the users’ concern about debit card fraud while doing ecommerce transactions. The electronic card can be created by the account holder or customer using SBI's Net banking facility for ecommerce transactions. State Bank Virtual has a limited shelf life and can be used for only one transaction to limit the exposure of the account.

It allows the user to create a virtual card for any online transaction and the person is not required to share details of the principal account on the merchant Website thus insulating the account from any possible fraud.

There is no charge on creation of the card and the customer can create any number of cards at the same time. The card is created for each online transaction and is valid for maximum of 48 hours. There is no transfer of balance from the principal account in as much as only a lien is marked on the account. Actual transfer of balance takes place only when the customer does the actual transaction online, SBI said.

"All forms of transactions, be it Internet banking, credit and debit cards, are fully secured but there are some people who are scared and hold back from online transactions on fears of compromise of data. The main objective behind this new product is to provide relief to these customers and give a push to e-commerce," Richhpal Singh, DGM, Payment Systems, SBI has said in a statement.

How Google Searches the Entire Web in Half a Second

2012-04-25T01:30:00.000-07:00

It only takes half a second for Google to return a search based on keywords you type in, but there’s a whole lot more happening behind the scenes to give you the results you need. Google on Monday launched a video that explains the science behind how the massive search engine actually works.

Matt Cutts, software engineer head of Google’s webspam team, details in a YouTube video how the search engine giant thoroughly scours the web on a daily basis to provide the most up-to-date results to users.

“There are three things you need to do to be the best search engine in the world. First, you need to crawl the web comprehensively and deeply, then you want to rank or serve those pages and return the most relevant ones first,” Cutts said.

Although Google crawls the web on a daily basis, that wasn’t always the case.

“We used to crawl for 30 days… and then index for about a week and push that data out — and that would take about a week,” Cutts said. “Sometimes you would hit a data center with new data and sometimes you would hit a data center with old data.”

But this method wasn’t optimized since a lot of the information would be out of date. In 2003, Google switched to crawling a significant amount of the Internet each day. By scouring the web each day for new content, it incrementally updated its index.

“We have gotten even better over time, and at this point, we can keep it very fresh,” Cutts said.

To do so, page rank is the key deciding factor as to how likely you are to see a link: “We basically take page rank as the primary determinant and the more page rank you have — that is, the more people that link to you and the more reputable those people are — the more likely it is that we will discover your page relatively early in the crawl,” Cutts said.

Google also places a lot of emphasis on word order. For example, a search for pop singer “Katy Perry” will look for results with those two words next to each other, rather than having “Katy” and the word “Perry” show up in different parts of the content.

Finding the right balance between word proximity, page reputation and links pointing to it is the key.

“That’s kind of the secret sauce,” Cutt added.

Google then sends that query out to hundreds of different machines all at once, which look through their fraction of the web that has been indexed to find the best match.

“We say, ‘what’s the best page that matches this query across our entire index?” Cutts said. “We take that page and we try to show it with a useful snippet, so we show the keywords in the context of the document and get it all back in under half a second.”

How do you think companies can use this information to better show up in Google search results? Let us know your thoughts in the comments.

Custom ORDER BY For SQL Server

2012-04-24T00:29:00.000-07:00

Semester Based Custom ORDER BY For SQL Server

Working with lots of academic data I often have the need to sort based on the semester. Here is a quick sample of how to build a custom order by list that will give you ordered results based on the semester (in descending order)

ORDER BY
    ACADEMIC_YEAR DESC,
    CASE ACADEMIC_TERM
        WHEN 'WINTER' THEN 1
        WHEN 'FALL' THEN 2
        WHEN 'SUMMER' THEN 3
        WHEN 'SPRING' THEN 4
    END

-------------------------------------------------------------------------------------------


Defining a Custom ORDER BY Sort Order
The SQL ORDER BY clause is very useful to sort your results quickly and easily. An underlying problem with ORDER BY is that, in its simplest implementation, we are quite limited to how it actually functions. We leave the SQL Engine of our database of choice to decide what the order is. Typically we could use the ORDER BY clause to either modify the sort order -




SELECT * FROM EMPLOYEES ORDER BY EMP_ID [ASC|DESC]

or even numerically order the columns to sort based on the SELECT clause -




SELECT EMP_ID, NAME FROM EMPLOYEES ORDER BY 1,2

These approaches give us some control over how this clause functions, however it isn't very friendly or functional when we have very specific needs. What if we need to specify a custom order that the basic functions of ORDER BY are incapable of?

Using our Employee example again, what if we need to order by a specific seniority level - say we want the supervisors to appear first, then associates, then executives. We may get lucky with a standard ORDER BY, but odds are it won't work out as we intended. For simplicity's sake, the seniority level is a field within the EMPLOYEE table.

To solve this issue, we can utilize a Select (or Switch) case familiar to programmers within the ORDER BY clause. The syntax would look similiar to the following:




...

ORDER BY CASE [Column Name] WHEN [Value1] THEN [Position 1] WHEN [Value2] THEN [Position 2] END

This structure allows us to layout the custom order scheme needed for our solution. Applying this to our sample problem, we end up with a query such as this:




SELECT EMP_ID, NAME, SENIORITY
FROM EMPLOYEES
ORDER BY CASE SENIORITY
WHEN 'SUPERVISOR' THEN 1
WHEN 'ASSOCIATE' THEN 2
WHEN 'EXECUTIVE' THEN 3
END

The result query would then be ordered precisely as required.

World's first flexible e-paper display heads into mass production

2012-04-02T08:53:00.003-07:00

LG on Thursday unveiled the world’s first plastic e-paper display, which the company claims will “revolutionize the E-Book market.” The 6-inch E Ink display features 1,024 x 768-pixel resolution and can bend at an angle of up to 40 degrees. “With the world’s first plastic EPD, LG Display has once again proven its reputation for leadership and innovation with a product we believe will help greatly popularize the E-Book market,” said Mr. Sang Duck Yeo, Head of Operations for LG Display’s Mobile/OLED division. “Based on our success in mass-producing plastic EPD, we are excited as we look toward applying concepts from this experience to future developments like plastic OLED and flexible displays.” The display will be supplied to manufacturing companies in China first, and end-user products could launch in Europe as soon as the beginning of next month. Read on for LG’s press release.

LG Display Begins Mass Production of World’s First Plastic E-Paper Display

With advancements in functionality and design, Plastic EPD to revolutionize E-Book market

Seoul, Korea (March 29, 2012) – LG Display [NYSE: LPL, KRX: 034220], a leading manufacturer of thin-film transistor liquid crystal display, announced today that it has started mass production of the world’s first plastic electronic paper display (EPD) for use in E-Books. The 6″ XGA (1024×768), e-ink, plastic EPD is expected to revolutionize the E-Book market with its advancements in functionality and design.

“With the world’s first plastic EPD, LG Display has once again proven its reputation for leadership and innovation with a product we believe will help greatly popularize the E-Book market,” said Mr. Sang Duck Yeo, Head of Operations for LG Display’s Mobile/OLED division. “Based on our success in mass-producing plastic EPD, we are excited as we look toward applying concepts from this experience to future developments like plastic OLED and flexible displays.”

Innovations in Functionality and Design

The world’s first plastic EPD from LG Display offers users a paper-like reading experience with a plastic substrate that is as slim as cell phone protection film, and a flexible design that allows bending at a range of 40 degrees from the center of the screen. Compared to glass EPD of the same size and resolution, LG Display’s plastic EPD realizes a super slim thickness of 0.7mm which is 1/3 slimmer than existing glass EPD; as well as a weight of 14g which is more than 1/2 lighter.

E-Book users have long expressed a desire for more durable EPD, since around 10% of them have damaged their product screens from accidentally dropping or hitting them. When LG Display’s plastic EPD was put through repeated drop tests, from 1.5m above the ground or the average height of reading when standing, no damage resulted. When put through a break/scratch test involving hitting the display with a small urethane hammer, no scratches or breakage resulted.

As EPD gets thinner, lighter, and more durable with the introduction of plastic EPD, E-Books will be able to offer certain unique benefits compared to smart devices and tablets, including reduced eye fatigue and more efficient electricity consumption in addition to lower prices.

A Manufacturing Breakthrough

LG Display developed a unique technique to utilize the high TFT process, typically employed in general LCD manufacturing and with temperatures exceeding 350 degrees, in the production of its plastic EPD. By overcoming the obstacles associated with applying the existing production process to heat susceptible plastic, LG Display achieved a breakthrough with the successful mass production of plastic EPD able to maintain strong durability in high temperatures.

Availability

The world’s first mass-produced plastic EPD from LG Display will first be supplied to ODM companies in China, followed by completed products to be released in Europe at the beginning of next month.

Samsung Galaxy S3 display 'will rival the iPhone'

2012-04-02T08:52:00.000-07:00

Reports suggest the Samsung Galaxy S3 will come sporting a Super AMOLED HD plus display when it finally launches in the second or third quarter of 2012.

Digitimes spoke to sources in Samsung's supply chain, who revealed the Galaxy S3 is likely to ship with a 4.6-inch screen, boasting a pixel density of 319ppi – quality which will rival the retina display on the iPhone 4S.

In Depth
Samsung Galaxy S3 release date, news and rumours

AMOLED displays provide better power consumption, reaction time, weight and thickness compared to LCD displays, which has lead to predictions that a high number of handsets will use this technology in 2012.

Still no word on a release date

Samsung is the number one producer of AMOLED displays and is looking to introduce into a number of its new models.

The Samsung Galaxy S3 is shaping up to be a stand-out mobile phone, with rumours suggesting it will sport a quad-core processor, large HD screen, 4G, NFC and beefed up camera.

We're yet to hear when the Galaxy S3 will be launched, although Samsung has said it will arrive in the first half of the year.

Five free cloud storage options

2012-04-02T08:51:00.000-07:00

So you just learned that you can store data on something called “the cloud” and access it anywhere in the world so long as you have a smartphone/tablet or a computer with an Internet connection and you don’t need to lug all your important data with you on a portable storage device.

Well first let’s break the “cloud” bubble for you. Your data isn’t actually stored in thin air, its saved on a server that is hosted by the service provider you are connected with. This data is then accessible by you from any device that is supported by the service provider. All you need is the device and an Internet connection.

If you are looking to back up those important documents, images or music files, cloud storage is an option you should consider. So before you go gung-ho, and drop some cash on purchasing cloud space, here are some free options you may want to check out!

DropBox

Dropbox is a cloud storage service that lets you bring all your photos, docs, and videos anywhere. Any file you save to your Dropbox will automatically be visible on all your computers, phones and even the Dropbox website. You can also share the content with others.

Straight after registration users get 2GB storage absolutely free. You can gain up to 8 GB of additional free storage if you recommend Dropbox to your friends and they start using the service.

If you are in the market to pick up a device from the HTC One lineup (yet to be launched in India), then you are in luck as HTC has announced that users who purchase the device will receive 25GB free Dropbox storage for 2 years. That’s a really good deal considering the fact that 50GB of storage space can be purchased from Dropbox for $9.99 per month.

Apart from your PC/Mac/Linux machine, you can download the DropBox app on iOS, Android, BlackBerry OS and Windows Phone.

You can register for a Dropbox account here.

Box.net (Now box.com)

If 2GB free storage isn’t enough, you can take a look at box.com. This cloud based storage service provider offers 5GB of free storage to users.

If you have an Xperia or LG Android device, you can get 50GB of cloud storage space. This offer is valid until December 31, 2012.

Apart from storing your data, you can share it as well and receive real time updates to see who has viewed your shared documents.

You can access box.com from your Mac/PC, and from your iOS and Android device as well

You can register for Box.com here.

iCloud

Apple too has its fingers in the cloud storage space with iCloud. The service allows users to store data such as music files on Apple’s remote servers for download to multiple devices. The data can be downloaded to your iOS devices, PC/Mac. It also replaces Apple's MobileMe service, acting as a data syncing center for email, contacts, calendars, bookmarks, notes, to-do lists, and other data.

Once you sign up for iCloud, you get 5GB of cloud storage free. If you would like more storage, you will have to pay for it. Apart from being able to store data on the cloud, iCloud lets users wirelessly sync between devices smoothly and seamlessly. Click a picture from your iPhone, and its there on your iPad/Mac. Download an app on one iOS device and it appears on the other.

You can take a look at the features of iCloud here.

SkyDrive

The only service on our list to offer the highest free storage space straight out of the box, SkyDrive gives users 25GB of free personal storage space. The only catch here is that the limit for individual files is 100MB.

To access the service all users need is a Windows Live ID. That’s it. Users can view photos and Office documents that they have stored on SkyDrive from their Smartphone. All users need to do is log on to skydrive.live.com from their smartphones and sign in. Voila! Your data is at your disposal.

If you are a Windows Phone user, the pictures you take from your smartphone can be uploaded directly to SkyDrive automatically, or when you choose. Users can also Create, edit and share Word, Excel, PowerPoint and OneNote documents from SkyDrive

You can sign up for the SkyDrive service here

Sugar sync

SugarSync gives you online cloud storage for all files — documents, music, photos, and video. If you edit or make changes to files on your PC or Mac, SugarSync automatically syncs your files to the cloud. Apart from the PC/Mac, you can download the Sugar Sync app for iPad, iPhone, Android, BlackBerry, Windows Mobile and Symbian devices.

Sugar Sync offers users 5GB of free cloud storage.