Script Error Because of Huge number of rows in ASP Table

Dear Bhushan,

Thanks for your reply, As per client requirement we need to display all the products on the webpage.

But as of now i am able to resolve the issue.By changing update panel's property  

ScriptMode="Release" 

and inserting the below script on js file

function AppInit(sender)

 {

 

// Init event will execute anonymous function which resolves timeout exception

 

 Sys.WebForms.PageRequestManager.getInstance().add_endRequest(function (sender, args)  

      {         

        if (args.get_error() && args.get_error().name === 'Sys.WebForms.PageRequestManagerTimeoutException')

                {   

                   args.set_errorHandled(true); 

                }

        });    

 

 }

finally by making update panel as below

<asp:ScriptManager ID="smMain" ScriptMode="Release" EnablePageMethods="true" AsyncPostBackTimeout="600"

            runat="server">

            <Scripts>

             <asp:ScriptReference Path="../PDT/init.js"/>

            Scripts>

 asp:ScriptManager>

 Thanks.

Hari.