Issue of RadGridView Binding to a ListCollectionView with same parent type but multiple children types

[Stephen Zeng]

Hi Admin,

I did some search in this forum and it seemed that no similar topic has been post.

I have an ObservableCollection<AbstractEntity> which contains some derived class instances such as CustomerEntity and EmployeeEntity. Binding this collection to a RadGridView ItemsSource is ok. Data is displayed correctly.

I want to apply some filters, such as showing CustomerEntity or EmployeeEntity only. So I defined a ListCollectionView like this:

var peopleCollectionView = (ListCollectionView)CollectionViewSource.GetDefaultView(this.People);

then bind the RadGridView ItemsSource to this ListCollectionView, and apply the filters to the ListCollectionView.

The filters work fine. But I found whenever there are multiple derived types of instances in the collection, the RadGridView shows the rows but the content in all the cells are empty. 

I checked the output and did not see any GUI exception.

Is it a known issue? Is there any solution for this?


Thanks,
Stephen

[Vlad]

Hello,

 Can you post more info about the grid version? Can you try also standard WPF DataGrid in this scenario?

Greetings,
Vlad
the Telerik team

[Stephen Zeng]

Hi Vlad,

The Telerik.Windows.Controls.GridView.dll version is 2011.1.315.35.

I have already tried the standard WPF control GridView in a ListView and it worked. It seems that it is a RadGridView issue when it binds to a ICollectionView and very easy to be reproduced as I described previously.

Thanks,
Stephen

[Vlad]

Hi Stephen,

 The problem is identified and fixed immediately -  the fix will be part of our upcoming latest build later Today. I've added 2000 Telerik points to your account.

Kind regards,
Vlad
the Telerik team