RadGridView hide groups with 0 items

[Valerio]

Hi Telerik Team,

I'm using a RadGridView with a group descriptor to categorize items belonging to the same group:

<telerik:RadGridView.GroupDescriptors>
<telerik:GroupDescriptor Member="GroupData.Name" />
</telerik:RadGridView.GroupDescriptors>

The problem is that, in order to initialize the application, I needed to define a Dummy group that contains 0 items. The dummy group gets removed once the user makes a selection on the actual groups he wants to analyze.
I don't want the Dummy group to be shown in the grid when the application is loaded. Is there a way to hide it?

Thanks,
Valerio

[Valerio]

I have to correct myself: the dummy group contains actually a dummy item. I guess my question is if I can customize the GroupDescriptor property in order to show only the groups that have a specific condition.
Sorry for the confusion,

Valerio

[Dimitrina]

Hello Valerio,

Basically you could hide or show rows by adding a FilterDescriptor that filters your items by a certain criteria. You should define the Filtering criteria as explained in the Programmatic Filtering article. As another example, you can check the "Programmatic Filtering" WPF Demo. In your case you define a Dummy group that contains 0 items and I am afraid you cannot hide groups based on a specific condition. 

Regards,
Dimitrina
Telerik

 

 

[Valerio]

Thanks Dimitrina,
For some reasons the filtering approach didn't work on my first try. I solved it by modifying the DataContext object.

Valerio