How to Upload Large file in Asp.net

In this article we are explaining how to upload large file in asp.net. In previous article we discussed How to upload file in asp.net. But problem is that when we want to upload large file more than 4MB using File Upload control then file is not upload and display an error 'Maximum request length exceeded'. This type of problem is occurring because The 4MB default is set in machine.config. But you can override it in your web.config.

Step 1

Go in solution explorer and double click on 'web.config' file.

Step 2

In 'web.config' file and write following code.

<system.web>

  <httpRuntime executionTimeout="240" maxRequestLength="20480" />

</system.web>

Step 3

Now run project and try to upload large file.