how to display the BusyIndicator that hang ExpandAll () runs a RadTreeView

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

    Posted 12 May 2011 Link to this post

    Hello ,

    I am using Silverlight application and I have a Telerik RadTreeView. I like display the BusyIndicator hang the methode ExpnadAll() runs.
    Note : (My RadTreeView contains many elements)

    My code looks like this :



    private void Button_ExpandAll(object sender, RoutedEventArgs e)














        this.MyBusy = true;












        this.MyBusy = false;

    But the BusyIndicator is never displayed.




  2. Kiril Stanoev
    Kiril Stanoev avatar
    1512 posts

    Posted 17 May 2011 Link to this post

    Hi bouda,

    Unfortunately this approach is not supported for the moment. RadTreeView's ExpandAll operation is UI operation, thus it has to be done on the UI thread which leads to blockit it. Therefore, using the BackgroundWorker class will not help. I've added an item in our PITS under the name "TreeView: Do not block the UI thread during ExpandAll" which will be available for tracking and voting tomorrow the latest. If the item gathers enough popularity, we will definitely consider implementing it. I've also updated your Telerik points accordingly.

    All the best,
    Kiril Stanoev
    the Telerik team
    Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items
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