Maximum request length exceeded exception on postback

.net, asp.net

Solution

A postback sends back the viewstate of every control - if you have a huge datagrid, then when the browser reposts that to the server, this is why you are getting the exception.

Your two options are:

- Set `EnableViewState="false"` on your GridView if you do not need the viewstate, so it's not so bloated and the postback is a reasonable size,

Increase the maximum request size in `web.config` as shown below:

<configuration>
    <system.web>
        <httpRuntime maxRequestLength="32768" />
    </system.web>
</configuration>

Hope this helps

Problem

I'm getting the following exception on a button click, for an asp page which binds more than 500 records in a gridview on page load. My page does not have any upload control. It contains a textbox, button and the gridview. Does anyone know why this is happening. Exception Description: ``` Maximum request length exceeded. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. ```

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