You get this error when displaying a web page in your application:
Server Error: HttpException (0x80004005): Request timed out.
This typically occurs when a server-side code function or macro executes for a period of time longer than the maximum timeout period allowed for server-side code execution.
Adjust the executionTimeout parameter in your application’s Web.config file.
<httpRuntime
maxRequestLength="10240"
executionTimeout="36000"
/>
Part VII: Troubleshooting Applications
Application Runs But No Data is Displayed