Application crashes upon filtering /scroll down

4 posts, 0 answers
  1. Vaishali
    Vaishali avatar
    5 posts
    Member since:
    Dec 2012

    Posted 29 May 2013 Link to this post

    Issue 1.
    I have a raddataform into details of radgridview.Raddataform contains data with special characters like ;, ", <, >,:, (,) etc.
    When I scroll down some records beore that particular record containing special characters, it works fine.But  when I scroll down again near to that record,application hangs.

    I could understand the issue is due to special characters.I cannot avoid using special characters here.Please suggest some solution.

    Issue 2.
    I have a radgridview and one timer for refreshing the data.If condition satisfied,all data gets removed from the gridview.Then click on internal filter button it gives error like-
       at lambda_method(Closure )
       at System.Linq.EnumerableQuery`1.GetEnumerator()
       at System.Linq.EnumerableQuery`1.System.Collections.IEnumerable.GetEnumerator()
       at Telerik.Windows.Controls.GridView.DistinctValueViewModelCollection.AddRangeFromSource(IEnumerable source)
       at Telerik.Windows.Controls.GridView.DistinctValueViewModelCollection.SetSource(IEnumerable source)
       at Telerik.Windows.Controls.GridView.FilteringViewModel.RefreshDistinctValues()
       at Telerik.Windows.Controls.GridView.FilteringViewModel.Refresh()
       at Telerik.Windows.Controls.GridView.FilteringControl.Prepare(GridViewColumn columnToPrepare)
       at Telerik.Windows.Controls.GridView.FilteringDropDown.PrepareFilteringControl()
       at Telerik.Windows.Controls.GridView.FilteringDropDown.OnDropDownPopupOpened(Object sender, EventArgs e)
       at Telerik.Windows.Controls.AutoClosePopupWrapper.OnPopupOpened(Object sender, EventArgs e)
       at MS.Internal.CoreInvokeHandler.InvokeEventHandler(UInt32 typeIndex, Delegate handlerDelegate, Object sender, Object args)
       at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName, UInt32 flags)

    before that it works properly.

    Thanks, in advance.
  2. Yoan
    Yoan avatar
    1128 posts

    Posted 31 May 2013 Link to this post

    Hi Vaishali,

    Currently we are not aware of such issues with RadDataForm and RadGridView. 

    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.


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  3. Vaishali
    Vaishali avatar
    5 posts
    Member since:
    Dec 2012

    Posted 01 Jun 2013 Link to this post

    To reproduce this, add semicolon (;) into data of the gridview and try to scroll up/down or apply filters .Only doing this ,this issue is reproduced.Please if you find any solution, do reply as early as possible since time running late for project.
  4. Ivan Ivanov
    Ivan Ivanov avatar
    1201 posts

    Posted 03 Jun 2013 Link to this post


    Unfortunately, we did not manage to reproduce this issue. Both of the mentioned controls are completely data-binding-driven and their performance should not be affected by any specific data. I guess that this behavior is scenario specific. Can you please send us a sample project that illustrates it? We will do our best to provide solution as soon as possible.

    Ivan Ivanov

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