DotNetJaps

Yield statement in C#

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Mon, 09 Nov 2009 19:35:00 +0000

Yield statement is one of most interesting statement in the C# 2.0. I have heard about lot of yield statement but today i have learned about yield statement. Yield statement can be used to return multiple object from a method while retaining its state. You can get item in sequence with help of yield.Let take a simple example to see the power or yield statement.

Let's create one example which will help you the understand how its works Let create a function will return the square each time this function is called.

Code Snippet



public static IEnumerable<int> Square(int min, int max)
        {
            for (int i = min; i < max; i++)
            {
                yield return i*i;
            }
        }

Now each time this method is called it will return the square of current value within a given range and its also maintains the state between calls. Let create for each loop to call the the square function above.

Code Snippet



 foreach (int i in Square(1, 10))
            {
                Response.Write(i.ToString() + " ");
            }

And here will be the output in the browser.

So it will create IEnumerable without implementing any interface and lesser code.

Happy Programming..

Technorati Tags: C# 3.0,C# 4.0,Yield

C# 4.0 - Optional Parameters

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sun, 08 Nov 2009 12:13:00 +0000

With .net framework 4.0 and C# 4.0 also introduces a new feature called optional parameters it was there in VB since visual basic 6.0. But it is now available in the C# with 4.0 version. Optional parameter will be become very handy when you don't want to pass some parameter and just you need the default value. For that Till C# 3.0 we need to create overloaded functions where we creating function with different argument with same function name. Let's see how its works

Let's go through a simple scenario we will create function with simple response.write which will print a string which will be optional argument.

Code Snippet



 protected void Page_Load(object sender, EventArgs e)
        {
            PrintMessage();
            PrintMessage("This is message to print passed as argument"); 
        }
        private void PrintMessage(string MessageToPrint="This is default message to print")
        {
            Response.Write(MessageToPrint);   
        }

See the above example in that we have created one created once function PrintMessage which will print message on web page thorough Response.Write. And in the Page_Load event we called two times first one is which without argument which will print default message and another one which will have message an message argument which will print message which we have passed. Lets run that application and following out put will produced.

So that's it it will work like this if you passed argument the it will use argument or otherwise its will use the default argument. This will become handy and you don't need to write overloaded function with default value.

Happy Programming ...

Technorati Tags: C#4.0,ASP.NET 4.0,New Features

New publish setting dialog in visual studio 2010 beta 2.

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 07 Nov 2009 11:23:00 +0000

Those who are working with asp.net will also know about the publishing site to directly with publish dialog. This was introduced with visual studio 2005 and till now it is one of the best way to publish your asp.net site with only required files. Visual studio 2010 is not a exception but the publish dialog is enhanced with more feature. Now the its directly given in the toolbar of visual studio 2010 like following.

Once you select the new the following dialog will appear.

In visual studio 2010 publish setting dialog has more options then earlier version. Now you can also save publish profile also and this profile will appear in the publish setting and by choosing that you can directly publish your site from the publish button with same setting you set for this profile.

The publish setting dialog also has more options then earlier version of visual studio. It is having four option.

MSDeploy Publish
Ftp
FileSystem
FPSE

MSDeploy Publish:

With this option you can directly deploy your site on Remote server IIS with MSDeploy tool .This is one of coolest thing in click once deployment. It can also deploy all the IIS setting, content of the website,registry setting for website,required assembly etc. For more details about this please visit following link:

http://vishaljoshi.blogspot.com/2009/02/web-deployment-with-vs-2010-and-iis.html

FTP:

This is the same as visual studio 2008. You can directly publish your site on remote server with ftp protocol. If you have the username and password for ftp protocol then it is the easiest thing to publish your site on remote server.

File System:

This will create a published version of your webaplication on folder which you specified and then you can copy it whatever location you want. If you are having VPN of remote server then you can directly copy the publish version of you web application directly on specified location

FPSE:

FPSE means front page server extension.This is the oldest one which were introduced with the Internet was fairly young, to support things like hit counters, email components. Some developers that develop with FrontPage use these. It also provide way to publish content.

Technorati Tags: VisualStudio2010,Publish,Visual Web Developer 2010,ASP.NET

Visual Studio 2010 New Features:Zooming and highlighting tags.

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 07 Nov 2009 09:34:00 +0000

As i am using visual studio 2010 more and more i loving it more. While working with new Microsoft New Visual Studio 2010 Express edition I have came across about two more cool features zooming feature and another the highlighting start and end tag of particular selected tag.

Let see one by one. First feature is the new zooming feature of visual studio 2010 now you can zoom your html and server side code up to 20% to 400%. This feature is very useful when you are teaching some one some thing with your code. Another thing you can also make visible your lots of code in one screen while you set it less then 100%. There is a dropdown given in both source view of html code from which you can zoom it up to 400% like as following.

So you can zoom your code and view in the bigger way like following.

Same way you can do it for the server side code also.

Another feature i have came across is the highlighting of start and end tag in html source view. So user can have idea where the tag can be finish. As you can see in following picture I have selected link button and its highlighting both start and end tag of link button.

Technorati Tags: VisualStudio2010,ASP.NET 4.0

page_load event firing twice in firefox with asp.net page or user control.

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 07 Nov 2009 09:03:00 +0000

Technorati Tags: ASP.NET,C#.NET,ViewState

We are having a very large project in asp.net 3.5. During code review of project we have found that page_load event of one control is firing twice in the firefox browser. After doing some debugging i have found that it's due to one of the link button which is there in the control. I like to share you the same scenario with you all guys.

One of the developer from us has specified the link button click event two times. The first one in directly in the html with onclick like following.

Code Snippet



<form id="form1" runat="server">
    <div>
        <asp:LinkButton ID="lnkButton" runat="server" onclick="lnkButton_Click"></asp:LinkButton>
    </div>
    </form>

And another in the initialize event he has also attached the event handler for the click event like following.

Code Snippet



 protected override void OnInit(EventArgs e)
        {
            lnkButton.Click += new EventHandler(lnkButton_Click);    
            base.OnInit(e);
        }

So i have removed one of them from initialize event and now its calling page_load event only one time. This is also responsible for the failed to load ViewState error some time when you are adding controls dynamically.

Happy programming...

File upload control is not working with Update panel

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Thu, 05 Nov 2009 19:07:00 +0000

We all are using update panel for the Ajax implementation in every site. Nowadays Ajax is almost there in each and every site. Update panel is working fine with the all other controls but when we use the file upload control then its not working fine. I have searched from lots for this and i have found one of simple solution from the Imran's blog. It is so simple and works very well. You just need to add the "multipart/form-data" attribute to the form.

Here is the link from which you can have all the information.

http://knowledgebaseworld.blogspot.com/2009/02/file-upload-not-working-with-update.html

Thanks Imran for posting nice info like this.

Technorati Tags: Updatepanel,Microsoft Ajax,ASP.NET

Review of Microsoft Visual Web Developer 2010 beta 2 express edition.

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Mon, 26 Oct 2009 19:09:00 +0000

Microsoft visual studio express edition are light weight IDE provided free by Microsoft and also having almost all the functionality of its big brother Microsoft Visual Studio Professional edition except few. My pc is bit old now Its P4 and its having only 1gigs of ram so the express edition are the best suited for pc like mine. Microsoft has recently provided the beta 2 version of Microsoft new generation IDE called Visual Studio Twenty Ten(2010).

There are lots of changes from visual studio 2008 express edition and Microsoft Visual Studio 2010 Express edition. The first changes you will notice is the brand new splash screen and brand new colored logo for visual studio.

Another thing you will notice is the look and fill of IDE. It all looks like blue every where. Its is best suited for the Microsoft forthcoming operating system Microsoft Windows 7.

Another the difference is the create new project window which is bit stylish and having more options compare the to the visual studio 2008. There are two new things in new project dialog the first one the windows azure tools which is Microsoft's new steps towards the could computing(I will blog about this later one). and another thing is the Silver light application option. Now you can create three kind of application with the Microsoft SilverLight Application

Silverlight Application
Silverlight Navigation Application
Silverlight class library

Another difference is the default font for the IDE earlier it was Courier New and now its Consolas which is the next generation programming font. Which is more visual than the other fonts.

Another major difference is when you create a asp.net web application then its now having more default folders compare to visual studio 2008. There are site.master is also there and some default style sheet just like asp.net mvc applications. You will have default login control like asp.net mvc application. There are two more folder scripts and styles. In style you will have default style sheet for the application. Another folder is for the scripts which are having default JQuery as per earlier announcement Microsoft and JQuery will go together.

Another new things in Microsoft Visual Studio 2010 Visual Web Developer Expression edition is the Tool Setting menu which are having three setting by default.

Basic Settings
Code Optimized
Expert Settings.

All the three option will have different setting for solution explorer and all other stuff. Another new thing is visual web developer 2010 express edition having multi monitor support which is not there in earlier express editions.Visual web developer express also having windows presentation foundation code editor.

Another cool feature is the maximized windows in design view now you will have whole window is maximized in design view hiding other windows. So you visually look all the control more better. Another cool thing is the percentage dropdown through which you can set all screen by percentage as per your requirement.

There are lots of more features like Improved css compatibility,HTML and Javascript snippets,support for asp.net mvc application and support for multi target etc. I will blog about each feature in much more detail. T

If you still not downloaded the future version of visual studio express edition 2010 then you can download it from the following link.

http://www.microsoft.com/express/future/default.aspx

Technorati Tags: Microsoft Visual Web Developer Express Edition 2010,ASP.NET 4.0,Microsoft Express edition

Ahmedabad Virtual Tech Days- 3rd October-Rocks!!!

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Tue, 06 Oct 2009 19:12:00 +0000

Last Saturday 3rd October. Ahmedabad .NET user group and Microsoft has organize the Microsoft Virtual Techdays. It was superb and well organized event thanks to Dhola Mahesh,Pinal Dave and Jacob Sebastian. We had four blasting session of Vinod Kumar, Pinal Dave, Jacob Sebastian and Prabhjot Singh Bakshi.

The first session was from vinod kumar on Microsoft Windows 7 and Microsoft Office 2010. Though he is sql server guy and very well known for his site. www.extremeexperts.com he has decided to take session for Microsoft Windows 7 and Microsoft Office 2010. The session was full of information and we have seen some of advance features of Microsoft upcoming operating system Windows 7 and new version of Microsoft Office 2010.

After that we went for the lunch and then followed by two sql server sessions from the Pinal Dave and Jascob Sebastian. Pinal Dave has taken session on SQL server Index and it was very useful session for any person related with software development. All the SQL Server index features is presented and he explains that where we should implement index and where we should not implement index for the better performance of queries through simples examples.

Then we have back to back session from Jacob Sebastian on the SQL Server errors . The session of awesome. I had never got such details explanation of the sql server error messages. He explained the best practices to write error handling code in sql server. Through it was session about error which every programmer hate it nobody was moved from his seat.

Then we had a tea break for 15 mins and after that Prabhjot Singh Bakshi has taken session on .NET Framework. The session was excellent and even advance concept was explain by simples examples. So overall it was great event and I enjoyed each and every session. Once again thanks for all the mentor of Ahmedabad .NET user group and Microsoft for organizing such events.

For more details about the event and photographs please visit following links.

http://blogs.sqlxml.org/vinodkumar/archive/2009/10/05/a-bad-ug-ctd-and-gandhi-ashram.aspx

http://blog.sqlauthority.com/2009/10/05/sqlauthority-news-community-techdays-in-ahmedabad-a-successful-event/

Technorati Tags: Ahmedabad .NET User Group,Microsoft Virtual Techdays,.NET 4.0,SQL Server 2008

Store Page ViewState in Session with asp.net

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Wed, 29 Jul 2009 19:20:00 +0000

As we all know we any web page on the internet is state less. We have to write our own mechanism to maintain state between httprequest and httpresponse. Asp.net has great features called viewstate to maintain state during page postback. It will store the element state in hidden variables with _VIEWSTATE. It will look like below.

If you are having large amount of controls then you will have larger viewstate on the page and it will increase your html kb as well as your performance. So to increase the performance of our application we need to store this viewstate in other place. ASP.NET 2.0 has nice new class called SessionPagePersister which will store the viewstate in the session. You just need to override the PageStatePersister property in your page and your viewstate will be on the page.

Here is the code.

Code Snippet



 protected override PageStatePersister PageStatePersister
         {
             get
             {
                 return new SessionPageStatePersister(this);
             }
         \

If you are having so many pages then you have to write that cod manually Instead of doing this you can use inheritance features of C#.NET to write the code in just one way and then inherit your page from that class. Following is the code for that. You can create a class called MyPage that class into all the pages here is the code for class MyPage .

Code Snippet



 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 using System.Web.UI;

 namespace TestBlogApplication
 {
     public class MyPage:System.Web.UI.Page 
     {
         protected override PageStatePersister PageStatePersister
         {
             get
             {
                 return new SessionPageStatePersister(this);
             }
         }

     }
 \

and Then inherit the class in your page like following.

Code Snippet



 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 using System.Web.UI;
 using System.Web.UI.WebControls;

 namespace TestBlogApplication
 {
     public partial class Page1 : MyPage
     {
         protected void Page_Load(object sender, EventArgs e)
         {

         }
     }
 }

So that's it that way you can increase your application performance via maintaining the viewstate in session. Happy Codding..

Technorati Tags: ViewState,Session,ASP.NET2.0,ASP.NET 3.5,ASP.NET4.0

Extend your existing classes with extension method in asp.net 3.5

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sun, 26 Jul 2009 16:15:00 +0000

In asp.net 3.5 there is one good features called extension method now you can extend your functionality without modifying existing classes. Extension method allow developers to add own functionality to any existing classes. You don't need to create subclass or don't need to recompile existing classes and still you can extend that class with extension methods. Let's create an example to extend existing string classes to convert a simple string to bold html string.

public static class MyExtensions
{
public static string ConvertToBold(this string mystring)
{
System.Text.StringBuilder myBoldString =new System.Text.StringBuilder(string.Empty);
myBoldString.Append("<strong>");
myBoldString.Append(mystring);
myBoldString.Append("</strong>");
return myBoldString.ToString();  
}
}

So now our extension method is ready. Following the sample code to use this extension method.

protected void Page_Load(object sender, EventArgs e)
{
string helloWorld = "Hello World";
Response.Write(helloWorld.ConvertToBold());
}

While running application you can out like below.

Technorati Tags: Extension,ASP.NET 3.5,C#.NET,String

What's new in sql server 2008

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 25 Jul 2009 19:51:00 +0000

Microsoft SQL Server are one of the popular RDBMS(Relational Database Management System) all over world. Before some time Microsoft has launched the new version of SQL Server 2008. SQL Server 2008 provides the highest levels of security, reliability, and scalability for your business-critical applications. . Following are the some of new features of SQL Server 2008.

Policy based management.
Performance Data Collection.
Data compression.
Resource Generator.
Transparent Data Encryption.
External Key Management/Extensible Key Management.
Data Auditing.
Hot-Add CPU and Hot-Add Memory.
Streamlined Installation.
Server Group Management.
Upgrade Advisor.
Partition aligned indexed views.
Backup Compression.
Extended Events.
Grouping Set.
Merge Operator.
Greater Support for LINQ and Entity Framework.
Change Data Capture.
Table Valued Parameters.
Entity data model for entity framework.
Synchronization Server with ADO.NET.
CLR Improvements.
Conflict detection between peer to peer Replication
Service Broker Priorities and Diagnostics.
Spatial Data with Geography and Geometry data types.
Virtual Earth Integration.
Sparse Column.
Filtered Indexes.
Integrated full text search.
File stream data.
Large user defined types.
Large user defined aggregates.
Date/Time Data Types.
Improved XML Support.
ORDPATH.

and many more features are there. It's great rdbms to use in your future projects. Please visit following link to explore above features in great details.

http://www.microsoft.com/sqlserver/2008/en/us/whats-new.aspx

You can download SQL server 2008 Express database for free from following link.

http://www.microsoft.com/express/sql/download/

Technorati Tags: SQL Server,SQL Server 2008,RDBMS,Microsoft

How to remove white spaces between tags and lines of html render by asp.net page

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 25 Jul 2009 19:24:00 +0000

When asp.net page loaded in to browser there are lots of white spaces between tags and in tags that will increase your html kb. For example if your page around 300 kb then it will take 3 second to load on 100 kbps internet connection and in dial up connection it will still take time. So if you want to load your site fast on dial up internet connection then you need to decrease html kb as much you can and removing white spaces from the html will be good idea for that.

Following is the code for the page on which you want to remove white spaces from the html. It will decrease your html kb by 30 percentage.

private static readonly Regex REGEX_FOR_TAGS = new Regex(@">s+<", RegexOptions.Compiled);

private static readonly Regex REGEX_FOR_BREAKS = new Regex(@">[\s]*<",
 RegexOptions.Compiled);
protected override void Render(HtmlTextWriter writer)
{
  using (HtmlTextWriter writer = new HtmlTextWriter(new System.IO.StringWriter()))
  {
        base.Render(writer);
        string htmlkb = writer.InnerWriter.ToString();
        htmlkb = REGEX_FOR_TAGS.Replace(htmlkb, "> <");
        htmlkb= REGEX_FOR_BREAKS .Replace(htmlkb, "><");
        writer.Write(html.Trim());
   }
}

Here in the above code there are two regular expression one for white space in tag and another for whitespace between tag and by just overriding the render event of event you can replace the whitespace.

Happy Coding...

Technorati Tags: HTMLKb,ASP.NET,Whitespace,Performance

Sending mail with secure service layer in asp.net 3.5/2.0

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Fri, 24 Jul 2009 19:04:00 +0000

In earlier post i have mentioned that how to send the email using new System.Net.Smtpmail with asp.net 2.0 or higher version. Now lets learn how to send the mail with the secure service layer in the asp.net.

Security is the one of the most important requirement in today’s world as you are doing your business online you have keep secure from other wrong elements. Secure service layer add an

extra layer of security to your web application and sending mail with the SSL with tighten your security for mails. Your emails are more secure then ever and your valuable information will not going to wrong hands.

Here is the code from which we can send the email with the secure service layer. As i have mentioned in earlier post you need to to send email with authentication to use SSL. So you need to write following code. First you need to create message like following..

MailAddress fromAddress = new MailAddress("from@site.com","Nameofsendingperson");
message.From = @”fromAddress”;//here you can set address
message.To.Add("to@site.com");//
message.Subject = "Sending email with ssl";
message.CC.Add("cc@site.com");//ccing the same email to other email address
message.Bcc.Add(new MailAddress("bcc@site.com"));//here you can add bcc address
message.IsBodyHtml = true;//To determine email body is html or not
message.Body =@"Plain or HTML Text";

Then you have to sent message with following code.

System.Net.Mail.SmtpClient mailClient =
 new System.Net.Mail.SmtpClient("your smptp","ssl port");
//This object stores the authentication values
System.Net.NetworkCredential basicCrenntial = 
new System.Net.NetworkCredential("username", "password");
mailClient.Host = "Host";
mailClient.UseDefaultCredentials = false;
mailClient.Credentials = basicCrenntial;
// You have to add one other properties for SSL
mailClient.EnableSSL=true;
mailClient.Send(message);

Technorati Tags: System.Net.Mail.Smtpmail,asp.net 4.0,Email

Client Id of a control in ASP.NET 4.0.

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Thu, 23 Jul 2009 20:05:00 +0000

Client Id is used to store the id of a server control in client side. ASP.NET Engine creates a very long client id to unique identify each element on the same page. If you are having so many inner controls hierarchy then asp.net will generate very long client id like “ctl00_Ctl001_ctl02_BM_Login_btnSave” here i i have used control name like ctrl00,ctr001,bm etc. If you are having long control name then it will more longer then this. This will increase html kilobytes for the pages and if you are having so many server controls in the page then it will take time to load in browser and will decrease performance of application . To overcome this problem we have to override existing asp.net controls like textbox,label etc and then you have override client id from server side with server side id. Now with asp.net 4.0 you can control client id generated by .net framework. In asp.net 4.0 there is one another property called ClientIdMode which will control the behavior of client id generated by .net framework. Like following.

<asp:Button ID="btnSave" runat="server" ClientIDMode="[Mode]" />

There are four types of different mode for ClientIdMode property.

Legacy- This is the same as in old version. It will generate client like like “ctl00_Ctl001_ctl02_BM_Login_btnSave” in old fashion.

Inherit-This is the default mode for every control . It will refer parent control to have its clientidmode. If you want to change it then you have to specify your client id mode for that control.

Static –This mode will put client id as static if you set server id like “btnSave” then it will generate the same ld like “btnSave”. So if you want to use this mode then you have to make sure that you are having all unique name in one pages. Otherwise it will be a mess for ids.

Predictable- This mode will used when the framework needs to ensure uniqueness of each control in particular way. The framework traverse from the control to parent controls and put hierarchy of parent control id with control id like ‘”ctrl0_btnsave” and for another btnsave its like “ctrl0_ctrl1_btnsave” etc.

Technorati Tags: ASP.NET4.0,ClientId

Javascript is not working with update panel- Microsoft Ajax

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Wed, 22 Jul 2009 20:30:00 +0000

As an asp.net developer we all must have to use update panel for the ajaxifying our application in today’s ajax world. No one likes postaback now. But when we add the some content with the java script under update panel then some times it’s stop working because of the update panel server side behavior. So what we should do? … Here is the trick. Normally we code java script in the asp.net page like following…

string alertScript = "javascript:alert('Alter From asp.net page')";
ClientScript.RegisterStartupScript(typeof(Page),"alertscript", alertScript);

Instead of this you should use.

string alertScript = "javascript: alert('This is aler from asp.net page')";
ScriptManager.RegisterStartupScript(this, this.GetType(), "alertScript",
                                 alertScript,true);

This will work. Happy coding..

Technorati Tags: UpdatePanel,ASP.NET,C#.NET,VB.NET,Microsoft ajax

Page.MetaDescription and Page.MetaKeywords in asp.net 4.0

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sun, 19 Jul 2009 19:34:00 +0000

As i have in my earlier post Search Engine optimization is necessary for every sites otherwise site will not have more users and viewers. For search engine meta tag are very important one Search engine crawler get information from this meta tags. There lots of meta tag but most important meta tag are keyword and description. From keyword meta tag search engine crawler get information about keyword for which they list this site page and from the description tag they will get descriptive information about particular page.

ASP.NET 4.0 introduces support for this. Now you can create your own meta tag keyword and description with the help of Page.MetaDescription and Page.MetaKeywords. It will render as same description and keyword meta tags in simple HTML Page. For example if you write following in your page_load event.

protected void Page_Load(object sender, EventArgs e)
{
   Page.MetaDescription = "This page contains information about asp.net 4.0";
   Page.MetaKeywords = "ASP.NET 4.0,Search Engine Optimization";
}

It will render meta tag as following.

<meta name="description" content="This page contains information about asp.net 4.0" />
<meta name="keywords" content="asp.net 4.0, Search Engine Optimization" />

So now with asp.net 4.0 you can do your site search engine optimization very easily and you don’t have to write code for that.

Technorati Tags: ASP.NET 4.0,Search Enigne Optimization,SEO,MetDesription,Keyword

Permanent redirection in asp.net 4.0

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sun, 19 Jul 2009 19:15:00 +0000

We all need search engine optimization in our sites. With web 2.0 site its necessary that our site is search engine friendly because if i write this blog but nobody comes to read my blog then what is the worth of it. So for every thing we need to have search engine optimization whether its a blog,site or any thing on web.

For Search Engine Optimization one of the most important thing is the permanent redirection with 301 headers. Now all you say what is 301 headers lets explore this thing in greater details.

301 Header in SEO:

Every dot net programmer does comes along Response.Redirect – It will redirect from one page to another page which causes 302 redirect. For search engine optimization 302 redirection is document is temporary moved from one location to another location so it will keep indexing the other document as well from which we have redirected. In 301 header it will stop the response from older page. So that search engine can index new location permanently.

We can achieve this functionality in asp.net 4.0 directly with permanent redirect method. Like following. It will create 301 headers for search engines/

Response.PermanentRedirect(“http://jalpesh.blogspot.com”);

With the help of this now you can redirect your 302 pages to 301 which will be more search engine friendly then the older one.

Technorati Tags: SEO,Search Enigne Optimization,ASP.NET 4.0

IIS 7.0 URL Rewrite Module 2.0 Beta Version is out now.

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 18 Jul 2009 18:45:00 +0000

Url rewriting is an important feature that will enable application to be search engine friendly and make url more readable. IIS 7.0 comes with built in url rewriting module so you don’t need to write more code for url rewriting module. URL Rewriting module will do following for you.

Replace the URLs generated by a web application in the response HTML with a more user friendly and search engine friendly equivalent
Modify the links in the HTML markup generated by a web application behind a reverse proxy.
Fix up the content of any HTTP response by using regular expression pattern matching

You can download IIS 7.0 URL Rewrite Module 2.0 Beta Version from the following.

http://www.iis.net/downloads/default.aspx?tabid=34&i=1904&g=6

It is containing following features.

Rule base url rewriting Engine
Regular Expression Pattern Matching.
Wild card pattern matching.
Global and Distributed rewrite rules.
Access to server variable and http headers.
Various Rule Actions
String manipulation features.
Support for IIS kernel mode and user mode output caching
Failed Request Tracing Support
Rule Templates
UI for testing of regular expression and wildcard patterns
UI for managing rewrite rules and rewrite maps
GUI tool for importing of mod_rewrite rules

For more details about IIS 7.0 Url Rewriting modules visit following links.

http://learn.iis.net/page.aspx/460/using-url-rewrite-module/

http://ruslany.net/2009/07/url-rewrite-module-2-0-for-iis-7-beta/

http://www.15seconds.com/issue/081205.htm

Technorati Tags: IIS 7.0,UrlRewriting,ASP.NET,VB.NET,C#.NET

Microsoft SilverLight 3.0 is out now-What’s new in Silverlight 3.0?

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 18 Jul 2009 16:51:00 +0000

Microsoft Silvelight 2.0 has been great success for the Microsoft. There lots of rich user friendly animated application is designed with Microsoft Silvelight 2.0. Now with Microsoft has added some new features to Silverlight 3.0. It includes major media enhancement,allowing web applications to view on desktop, Graphic improvement for 3D Support, GPU Acceleration and H-264 Support etc. Following is new feature list for silvelight 3.0

Live and on demand true HD Smooth streaming.
More format Choice.
True HD Playback.
Extensible media format support
Perceptive 3D Graphics
Pixel shader effects.
Bitmap Caching.
Animation Effect.
Enhance control skinning.
Improve text rendering and font support.
Search Engine Optimization
Data Forms and Data Validation.
Application library caching
Binary Xml.
Adobe Photoshop and Illustrator import support
Fully compatible with visual studio 2010.

There are many more features. To know more about him please visit following link. http://silverlight.net/getstarted/silverlight3/default.aspx

If you have any question then you can ask here in silverlight community.http://silverlight.net/Community/

You can get started with silvelight 3.0 with following. Its will be great help and tools available on following link. http://silverlight.net/GetStarted/

Technorati Tags: SiverLight,SilverLight3.0,SilverLight 2.0,ASP.NET4.0,WPF and WCF

Partial Types, Class and Method in C#.NET 3.0/2.0

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sat, 18 Jul 2009 15:45:00 +0000

With C# 2.0 Microsoft has added partial keyword in C#. So what is partial keyword used for. Lets go through the partial keyword in greater detail.

First and foremost use of the partial keyword is the you can declare one class or method with more then one declaration and at the compilation time it will have one complete class.So now you can declare a class more then one file at the compile time it will be treated as one class.

For example this is one class

//first file Patial Class
public class partial PartialClass
{
   public void First()
   {
     //First function
   }
}

 Here is the another class

public class partial PartialClass
{
   public void Second()
   {
      // Logic...
   }
}

Now at the compile time it will be treat as single class like following.

public class PartialClass
{
   public void First()
   {
      // Logic...
   }
   public void Second()
   {
      // Logic...
   }
}

Same way you can use partial method it will treated as one method as compile time. Partial method will only available with C# 3.0. It will not be available to C# 2.0.

Practical Usage Of Partial Class:

There are lots of way where partial class is useful like many developer can work on same class via creating different files. There are lost of code generators available in market so you can extend the class functionality via marking them partial. Partial class can also be used for the manage code in separate files instead of creating large files. With C# 3.5 linq to sql designer uses this concept to split custom behaviors outside mapping class.

Technorati Tags: C# 2.0,C# 3.0,ASP.NET2.0,ASP.NET 3.5,VB.NET,C#.NET,Partial,Partial Class,Partial Method

My blog post is in Microsft TechEd Online Editors Pick List

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Thu, 16 Jul 2009 18:59:00 +0000

Microsoft TechEd online is a great community and always been best to learn new thing. I have been proud of associating my self with great community. It’s a great thing to get acknowledgement from community. Recently one of my blog post-Sending email through System.Net.Mail.Smtpmail in asp.net 3.5/2.0 got place in Microsoft Teched editors pick list. It all because of my blog readers thank you for having faith in me. It’s a great honor to have this post is a part of community. Thanks Again………

Here is the link for all blog of Microsoft Tech Ed Online..

http://www.msteched.com/online/blogs.aspx

Technorati Tags: Micorsoft TechEd Online,Microsft .NET Community,ASP.NET,C#.NET,VB.NET

Subsonic 3.0 is out now- Next Generation Object Relational Mapper

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Thu, 16 Jul 2009 18:55:00 +0000

There lots of ORM(Object Relational Mapper) is available now like entity framework,nhibernate, linq, dlinq but i choose subsonic 3.0 for my next application which will be a question answer site for the following reason

Now subsonic 3.0 is with linq support so you can write your lambda expression and linq queries along with the subsonic
It comes with simple repository.
Built in T4 Templates for 4.0
Linq to subsonic.
Subsonic 3.0 templates.
Can handle thousand of queries at a times.
Full support with asp.net 3.5 features.
Ease of Use.
Great support with asp.net mvc

And another great news is that Rob Conery is hired by the Microsoft and subsonic will official ORM for ASP.net Applications.

You can download subsonic 3.0 from here.

http://www.subsonicproject.com/Download

Technorati Tags: ORM,Object Relation Mapping,Subsonic,Subsonic 3.0,ASP.NET,Linq

Happy Coding..

Photoshop and CSS Tutorials.

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Thu, 16 Jul 2009 18:33:00 +0000

Technorati Tags: Photoshop,Photoshop templates,CSS,CSS 3.0,PhotoshopCS,CSS Optimization

I am creating a web template for my forthcoming question answer asp.net mvc site. I need a web 2.0 rich template for my site for that i have search on web and found some great photoshop and css links. Here is collection for that.

Photoshop link:

First is the my link who created design for my blog. http://psdvibe.com/- Its a great resource to learn Photoshop and create professional template. Thanks you for giving me the best template free of charge.
http://www.webdesignbooth.com/32-useful-portable-apps-for-web-designers-and-developers/
http://hv-designs.co.uk- A Great Resource for Photoshop design
http://creativenerds.co.uk/tutorials/70-tutorials-using-photoshop-to-design-a-website/
http://pelfusion.com/
http://bestdesignoptions.com/
http://www.smashingmagazine.com/2009/07/15/clever-png-optimization-techniques/
http://sixrevisions.com/tutorials/web-development-tutorials/coding-a-clean-illustrative-web-design-from-scratch/
http://speckyboy.com/2009/07/06/40-free-and-essential-web-design-and-development-books-from-google/
http://webdesignledger.com
http://sixrevisions.com/
http://photoshoptutorials.ws/
http://www.tutorialized.com/tutorials/Photoshop/1
http://www.absolutecross.com/tutorials/photoshop/
http://www.photoshopsupport.com/tutorials.html

CSS Link:

Happy designing…

Sending email through System.Net.Mail.Smtpmail in asp.net 3.5/2.0

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Wed, 15 Jul 2009 19:56:00 +0000

For any web application or website the sending email is a necessity for newsletter, invitation or reset password for everything we have to sent a mail to the people. So we need to see how we can send mail. In 1.1 we are sending emails with System.Web.Mail.SmtpMail which is now obsolete. Now in asp.net 2.0 or higher version there is a namespace called System.Net.Mail.Smtpmail in asp.net 3.5. With this namespace we can easily write a code to send mail within couple of minutes.

If you want to sent a mail first thing you need is smtpserver. Smtpserver is a server which will route and send mail to particular system. To use smtpserver we need to configure some settings in web.config following is the setting for the web.config.

<system.net>
    <mailsettings>
       <smtp deliveryMethod="Network">
         <network host="stmp server address or ip"
           port="Smtp port" defaultCredentials="true"/>
        </smtp>      
    </mailsettings>
</system.net>

Here you need to set the all the smtp configuration. This will be used by the smptclient by default. Here is the code for sending email in asp.net 3.5

SmtpClient smtpClient = new SmtpClient();
MailMessage message = new MailMessage();
try
{
   MailAddress fromAddress = new MailAddress("from@site.com","Nameofsendingperson");
   message.From = fromAddress;//here you can set address
   message.To.Add("to@site.com");//here you can add multiple to
   message.Subject = "Feedback";//subject of email
   message.CC.Add("cc@site.com");//ccing the same email to other email address
   message.Bcc.Add(new MailAddress("bcc@site.com"));//here you can add bcc address
   message.IsBodyHtml = false;//To determine email body is html or not
   message.Body =@"Plain or HTML Text";
   smtpClient.Send(message);
}
catch (Exception ex)
{
   //throw exception here you can write code to handle exception here
}

So from above simple code you can add send email to anybody

Adding Attachment to the email:If you want to attach some thing in the code then you need to write following code.

message.Attachments.Add(New System.Net.Mail.Attachment(Filename))

Here file name will the physical path along with the file name. You can attach multiple files with the mail.

Sending email with Authentication: If you want to sent a email with authentication then you have to write following code.

     System.Net.Mail.SmtpClient mailClient = new System.Net.Mail.SmtpClient();
     //This object stores the authentication values
     System.Net.NetworkCredential basicCrenntial = 
           new System.Net.NetworkCredential("username", "password");
     mailClient.Host = "Host";
     mailClient.UseDefaultCredentials = false;
     mailClient.Credentials = basicCrenntial;
     mailClient.Send(message);

Happy Coding…

Google SMS Channel –Subscribe my post via SMS

jalpesh.vadgama@gmail.com (Jalpesh P. Vadgama) — Sun, 12 Jul 2009 18:49:00 +0000

Mobile has been very useful device since its launched. Now days we can not live without mobile. Think if you have your own sms channel and you can send message to your subscribers about your thought your blogs. It seems like a dream but now dream comes true. Google has launched new sms channel through which you can sent any thing to your subscribers. Now you guys can have my blog post via sms. I have created my channel at Google sms channel. You just need to subscribe that channel that’s it. You will have all my updates of blog on your mobile.

Here is the link for subscribing my blog post.

http://labs.google.co.in/smschannels/subscribe/DotNetJaps

Click this link and subscribe this channel and you will have all my blog updates on your mobile. Its free any one can create his/here channel. Go to http://labs.google.co.in/smschannels and try create new channel link and that’s it you are having your own sms channel.