When we upload a large file in asp.net using file upload control we got an error.so how to over come this ? The Default size of Asp.Net is 4MB. Code In Web.Config put this code.

    <system.web>  
       <httpRuntime maxRequestLength="1048576" executionTimeout="600" />  
    </system.web>  
    <system.webServer>  
       <security>  
          <requestFiltering><requestLimits maxAllowedContentLength="3000000000" /></requestFiltering>  
       </security>  
    </system.webServer>  

The below code maxRequestLength measured in kilobytes.Here is an example with a 1GB request length and a 10 minute request timeout:
    <httpRuntime maxRequestLength="1048576" executionTimeout="600" />  

 The below code maxAllowedContentLength measured in bytes. 
    <requestLimits maxAllowedContentLength="3000000000" />