Adding multiple items to RadGridView or RadTreeListView

[Vince]

For example, I have an ObservableCollection with 10000 items, and I want to add 1000 items to this collection. If I were to add the 1000 items one by one, it would be painfully slow because of the 1000 CollectionChanged events fired. The second option is to use the RadObservableCollection's SuspendNotifications and Reset methods. This option is more tolerable but it's still not desirable as adding 1000 items causes the control to reload the whole collection of 11000 items. Is there a better way to add 1000 items with a single CollectionChanged event being raised that is not a Reset action?


Thanks.

[Vlad]

Hello,

 Currently there is no other way to achieve this. 

Kind regards,
Vlad
the Telerik team