Whenever a post back is done, this error occurs when form fields are very large in numbers.
The stack trace is:
at System.Web.HttpValueCollection.ThrowIfMaxHttpCollectionKeysExceeded() at System.Web.HttpValueCollection.FillFromEncodedBytes(Byte[] bytes, Encoding encoding) at System.Web.HttpRequest.FillInFormCollection()
By default, the maximum value of
MaxHttpCollection is
1000.
To solve this error, increase
MaxHttpCollection value. Try adding the following setting in your
web.config's
<appsettings> block.
<appSettings>
<add key="aspnet:MaxHttpCollectionKeys" value="2001" />
</appSettings>
It can solve your problem. if you have very large records on your page, suppose 600 records in grid and you click on submit, then increase the value of
MaxHttpCollection.
Then change value 2000 to 5000 and test again. It will be resolved. :-D
