What is AJAX? Give ASP.Net code to use UpdatePanel control
Default Page ASPX File : <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs"
Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>ASP.Net code to use UpdatePanel control</title> </head> <body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <div> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> Number of refreshes: <asp:TextBox ID="text" runat="server" ReadOnly="true" Text="0">
</asp:TextBox> <asp:Button Text="Increment Counter" ID="btn" runat="server"
onclick="btn_Click" /> </ContentTemplate> </asp:UpdatePanel> </div> </form> </body> </html>
Default CS 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 _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e){} protected void btnRefresh_Click(object sender, EventArgs e) { int incCount = Int32.Parse(text.Text); incCount++; text.Text = incCount.ToString(); } }