RadGrid Not Sorting

[Rachael]

This is very complicated, but I will try and explain.  I have a RadGrid that contains a Repeater inside a GridTemplateColumn.  The repeater is a usercontrol that I've written, that is a HyperLink with some javascript that accommodates an onmouseover effect.

I have many records in my database that use this display.  For most of them, I have no problems and the entire interface works as expected.  There is one record (at least that we've discovered so far) that gives me this bizarre problem: the page loads just fine and displays as expected, but when I click on a column to sort I get a "The connection was reset" error.  I have played around with this a bunch and have discovered that if I set the HyperLink in my usercontrol that is inside the repeater to "#" instead of a valid URL, the page works as expected.  If I set the URL to some long (but valid) URL (http://www.telerik.com/community/forums/new-thread.aspx?forumId=249, for example), the sorting behavior fails. 

Note: this problem ONLY occurs with this specific record - all other records that we have tested with exhibit the expected behavior.  And because setting the HyperLink NavigateUrl to a valid URL with appropriate characters also causes this unexpected behavior, it is clearly not an issue with our data.

So I think the problem might have to do with the ViewState size.  Are there any known issues related to ViewState size and RadGrid sorting? 

If necessary, if you give me a direct email address, I can give you the URL and login information to the staging site for you to reproduce the problem.  As I'm sure you understand, I don't want to post that information on a public forum.

Thank you,

Rachael

[Radoslav]

Hello Rachael,

I assume that the problem is caused by a lot of data put into the ViewState and the size of it exceeded the set up maximum POST size.
Possible solutions could be:
Add this code to your page: (NET 2.0)

protected override PageStatePersister PageStatePersister
{
get
{
//return base.PageStatePersister;
return new SessionPageStatePersister(this);
}
}

This should put your ViewState into the Session, rather than in the page.

Increase the maximum Request limit (default is 4Mb)
- In the Machine.config file, change the maxRequestLength attribute of the <httpRuntime> configuration section to a larger value. This change affects the whole computer.
- In the Web.config file, override the value of maxRequestLength for the application. For example, the following entry in Web.config allows files that are less than or equal to 8 megabytes (MB) to be uploaded:
<httpRuntime maxRequestLength="8192" />
This is an exact quote from the Microsoft support page.

Please give it try and let me know if the issue still exists.

Best wishes,
Radoslav
the Telerik team