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    copied!<p>For a basic .NET website, I like to use the page methods for a quick easy way to make client to server calls. Consider the following aspx page and its code behind. You can expose public static server methods to javascript by adding the [WebMethod] attribute. Then you can call the function from javascript using PageMethods.NameOfFunction(). Just make sure you have a scriptmanager on the aspx page with the EnablePageMethods property set to "true".</p> <p><strong>Default.aspx</strong></p> <pre><code>&lt;%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %&gt; &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt; &lt;head runat="server"&gt; &lt;title&gt;&lt;/title&gt; &lt;script type="text/javascript"&gt; function init() { var str = "bytes"; var data = []; for (var i = 0; i &lt; str.length; ++i) { data.push(str.charCodeAt(i)); data.push(0); } PageMethods.DoSomething(data); } &lt;/script&gt; &lt;/head&gt; &lt;body onload="init();"&gt; &lt;form id="form1" runat="server"&gt; &lt;asp:ScriptManager ID="ScriptMan" runat="server" EnablePageMethods="true"&gt; &lt;/asp:ScriptManager&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p><strong>Default.aspx.cs</strong></p> <pre><code>using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Xml.Linq; using System.Web.Services; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } [WebMethod] public static void DoSomething(byte[] data) { //Do something with data from javascript } } </code></pre>
 

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