Ajax, Update Panel, Script Manager, Update Controls Outside Update Panel With Out Postback

2010-02-28T01:10:00.000-08:00

Here my first post is regarding Ajax.
So here I am going to give you a simple example how to update the controls outside the update panel without postback

Code behind file

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class scriptMgr : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = "Label1 upadte" + DateTime.Now.ToString();
Label2.Text = "Label2 updated" + DateTime.Now.ToString();
if (ScriptManager1.IsInAsyncPostBack)
{

ScriptManager1.RegisterDataItem(Label3, DateTime.Now.ToString());
}
}
protected void Button2_Click(object sender, EventArgs e)
{
Label1.Text = "Label1 " + DateTime.Now.ToString();
Label2.Text = "Label2 " + DateTime.Now.ToString();
if (ScriptManager1.IsInAsyncPostBack)
{
ScriptManager1.RegisterDataItem(Label3, "Label3 "+DateTime.Now.ToString());
}
}
}

Aspx page

Very Simple Linq Usage Sample

2010-02-25T03:54:00.001-08:00

Here I will give one very simple linq sample code.

A query that will return each of the items in the people List collection by aliasing the people collection with a variable p and then selecting p (p is of type string remember as the people List is a collection of immutable string objects).

You may notice that query is of type IEnumerable - this is because we know that query will hold an enumeration of type string. When we foreach through the query the GetEnumerator of query is invoked.

protected void Page_Load(object sender, EventArgs e)
{
List people = new List(){
"Sen", "Paulose", "Thomas", "Raju",
"Anil", "Shyam", "Saidwin"
};

IEnumerable query = from p in people select p;
foreach (string person in query)
{
Response.Write(person);
}
}

Journey to the ASP.NET World

Ajax, Update Panel, Script Manager, Update Controls Outside Update Panel With Out Postback

Very Simple Linq Usage Sample