groupDescriptor row is blank

[Yuxiao]

Hi,
     When I use the grid view to show some data, I met some trouble.
     If the grid view has 400+ rows and 400+ columns, the group descriptor row is always blank.
     Do you have some suggestion?

[Vlad]

Hello,

 Can you attach a screenshot?

Greetings,
Vlad
the Telerik team

[Yuxiao]

I've made a screenshot.

http://i256.photobucket.com/albums/hh166/nervedown/telerik_zps4583e249.jpg

[Vlad]

Hi,

 Can you post more info about the grid version? Is it our latest official Q2 2012 SP2 (2012.2 912)?

Regards,
Vlad
the Telerik team

[Yuxiao]

My version is 2012.2.607

[Vlad]

Hi,

 This version is our Q2 2012. Can you send us an example project (via support ticket) where we can reproduce the problem?

All the best,
Vlad
the Telerik team

[Yuxiao]

Hi,
    I found when I  added more than 350 columns into the grid view columns, this condition would occur.
   

   Here is a pick of my code.    
    foreach (String dateString in dataStrings)
   {
        GridView.Columns.Add(new GridViewDataColumn
                                             {
                                                   UniqueName = dateString,
                                                   Header = dateString
                                                   CellStyleSelector = styleSelector
                                             }
                                             );
   }

    GroupDescriptor groupDescriptor = new GroupDescriptor();
    groupDescriptor.Member = "Flag";
    GridView.GroupDescriptors.Add(groupDescriptor);
   

   I just use very easy function. But the amount of binding data is huge.(more than 400 * 400)

[Vlad]

Hello,

 Please open support ticket and send us an example project where we can reproduce the problem. 

Greetings,
Vlad
the Telerik team

[Vlad]

Hi,

 I've checked your project however I was not able to run it due to missing data and security problems with your data service. I've noticed however that RadGridView in your case in inside Silverlight Toolkit expander and as far as I know this component will measure child control with infinity. Can you try RadGridView outside this expander in your case to see what will be the result? 

Kind regards,
Vlad
the Telerik team

[Yuxiao]

Hi, Vlad

I've tried and it doesn't work.

[Vlad]

Hi,

 In this case can you send us runnable demo where we can reproduce the problem? There is no need to have data services or data base connections - just a in-memory mock of your data.

Regards,
Vlad
the Telerik team