DOTNET WORLD: How to send control value or any value from client side(Javascript) to server side (Code behind) by using AJAX page method concept:

We can send control value or any value from client side(Javascript) to server side (Code behind) by using AJAX page method concept:

Place script manager in a webpage and

Here we need to enable "EnablePageMethods" Property of ScripManager.

<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true" >

</asp:ScriptManager>

Default.aspx:

==========

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="SearchUser.aspx.cs" Inherits="Wizard.SearchUser" %>

<!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></title>

<script type="text/javascript" language="javascript">

function startSearch(val) {

PageMethods.SendValueToServerSide(val);

}

</script>

</head>

<body>

<form id="form1" runat="server">

<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true" >

</asp:ScriptManager>

<div>

<asp:TextBox ID="txtval" runat="server"></asp:TextBox>

<asp:Button ID="btnSearchInput" runat="server" Text="SendSearchInput" OnClientClick="

startSearch('

txtval.value'

)
" />

</div>

</form>

</body>

</html>

Default.aspx.cs:

===========

[System.Web.Services.WebMethod]

public static void SendValueToServerSide(string clientsidevalue)

{

string searchinputfromclientside = clientsidevalue;

}

DOTNET WORLD