How can I stop time out error for executing SQL query in ASP.Net? I researched in Google but I couldn't solve my problem correctly.
I think your problem is about CommandTimeOut.The time (in seconds) to wait for the command to execute. The default is 30 seconds. Here is full example. Otherwise, you should set the ConnectionTimeOut in your database connection string. Something like that
<add key="ConnString2" value="Provider=SQLOLEDB;User Id=sa;PASSWORD=1;
SERVER=BlurBlur;database=BlurBlur;Connect Timeout=60;"/>
If you use the UpdatePanel, set the AsyncPostBackTimeout.
<asp:ScriptManager ID="ScriptManager1" runat="server"
AsyncPostBackTimeout ="360000"></asp:ScriptManager>
to be more sure
<httpRuntime executionTimeout="360000"/>