Treeview performance when IsLoadOnDemandEnabled="True"

2 posts, 0 answers
  1. Rupendra
    Rupendra avatar
    8 posts
    Member since:
    May 2011

    Posted 15 Jun 2011 Link to this post

    I have a radtreeview and I have it's IsLoadOnDemandEnabled property set to true. I fill in the first level of nodes and then expanding every node fetches more data.

    I also have filtering logic where the top level nodes are filtered by the text entered by the user.

    I am experiencing long delays when I bind an ObservableCollection<T> to the tree. It is particularly annoying when the user deletes everything from the filter textbox and it takes a second or two to bind the filtered data to the  tree again.

    I have checked that the time it takes to filter the collection is insignificant compared to the delay I am talking about.
  2. Kiril Stanoev
    Kiril Stanoev avatar
    1512 posts

    Posted 20 Jun 2011 Link to this post

    Hi Rupendra,

    Have you set RadTreeView's IsVirtualizing property to True? If not, give it a try and let me know if it makes a difference. If it doesn't help, could you please send us a sample project reproducing the issue. This way we will be better able to assist you.

    Kind regards,
    Kiril Stanoev
    the Telerik team
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