RadGridView AutoExpandGroups problem

[Guy]

Hello,

I'm using telerik 2012 for WPF (Telerik.Windows.Controls.GridView.dll file version is 2012.3.1129.40).

I've defined grouping for a RadGridView, and set the AutoExpandGroups property to True.

When the Grid is opened, the groups are expanded, yet an empty area appears below the grid, and disappears only after I collapse and expand again one of the groups.

Please see the attached screenshot.

Thanks,
Guy E.

[Stefan]

Hello Guy,

I was not able to reproduce the issue you described. I set up a sample project containing the assemblies that you are using. Could you please modify it in a way that it reproduces the issue and send it back to us?

Kind Regards,
Stefan
Telerik

 

 

[Guy]

Hi,

I've attached a modified version of your project, and a screen shot of what I see when I run the program.

The PNG file attached is actually a RAR file (there's an extension filter in your forum posts attachments), please change its extension to .rar

Note that the RadGridView is contained in a StackPanel (just an example, it look the same in a grid).

Thanks,
Guy

[Stefan]

Hi Guy,

Thank you for modifying the sample project. To avoid the current grouping behavior of the RadGridView you should set the GroupRenderMode to "Flat". Please check  the code snippet below:

<telerik:RadGridView GroupRenderMode="Flat"/>

The "Flat" mode is our new virtualization mechanism. You can refer to the Grouping Modes documentation article for further reference.

As a side note, we do not recommend our customers to use the RadGridView in controls/panels which will measure it with infinity, as this turns off the RadGridView virtualization. You can check more about improving the RadGridView performance in the Tips and Tricks documentation article.

Kind Regards,
Stefan
Telerik

 

 

[Guy]

Problem solved, Thanks!