Disable scroll on changing collection

[Sergey]

Hello, I have problem with my radGridView. When I delete or add new rows, gridview scroll items to the top. But I don't need it. How can I fix it ?

[Yoan]

Hi Sergey,

Can you please try to set GridView's IsSynchronizedWithCurrentItem property to "True"? Please let me know about the result.

Regards,
Yoan
Telerik

[Sergey]

Hello, no it don't work. I use RadObservableCollection and QueryableCollectionView. GridView bind to the QueryableCollectionView. When I need remove, add or edit item I call RadObservableCollection.SuspendNotification(). After editing items I call RadObservableCollection.ResumeNotification(). And after gridView sometimes try to set selectedItem to null (2 times). I attached call stack.
When gridView.count've changed the gridview scroll to the top.

Thanks

[Sergey]

And when selectedItem had been deleted, gridView set null as selectedItem. Can I do that selectedItem will be set by next item in grid?

[Yoan]

Hello Sergey,

In order to investigate and resolve the problems, would it be possible to share with us more details on your exact implementation? It would be great if you can send me a small sample with dummy data in order to investigate the issue locally.

Thank you in advance.

Regards,
Yoan
Telerik

[Sergey]

Hello. I found problem. I do full object replace in RadObservableCollection. If I do it for object which is selected, SelectedItem set to first item. Can I freeze selectedItem without any code (I have MVVM pattern)? Thanks

[Yoan]

Hello Sergey,

I'm afraid that you can not achieve this only in XAML. However, if you want to have your code-behind clean, the way to go is with an Attached behavior. Here you can find information about it. 

Regards,
Yoan
Telerik