ComboBox selectionChanged error

6 posts, 0 answers
  1. Ghayth Hilal
    Ghayth Hilal avatar
    9 posts
    Member since:
    Oct 2009

    Posted 18 Aug 2010 Link to this post

    After upgrading to RadControls for Silverlight Q2 2010 SP1 from RadControls for Silverlight Q1 2010
    I started recieving the error listed below whenever I change the selection of the combobox.

    Any Idea of what might cause that error ?

    Thank you

    Webpage error details

    User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; InfoPath.3; .NET4.0E)
    Timestamp: Wed, 18 Aug 2010 20:13:40 UTC

    Message: Unhandled Error in Silverlight Application
    Code: 4004   

    Category: ManagedRuntimeError      

    Message: System.InvalidCastException: Unable to cast object of type 'Telerik.Windows.Controls.RadComboBoxAutomationPeer' to type 'System.Windows.Automation.Peers.SelectorAutomationPeer'.
       at Telerik.Windows.Controls.ListBoxItem.OnCreateAutomationPeer()
       at System.Windows.Automation.Peers.FrameworkElementAutomationPeer.CreatePeerForElement(UIElement element)
       at System.Windows.Automation.Peers.ItemsControlAutomationPeer.CreatePeerForIndex(Object item, Int32 index)
       at System.Windows.Automation.Peers.ItemsControlAutomationPeer.GetChildrenCore()
       at Telerik.Windows.Controls.Automation.Peers.SelectorAutomationPeer.GetChildrenCore()
       at Telerik.Windows.Controls.RadComboBoxAutomationPeer.GetChildrenCore()
       at System.Windows.Automation.Peers.AutomationPeer.GetChildren()
       at Telerik.Windows.Controls.Automation.Peers.SelectorAutomationPeer.RaiseSelectionEvents(SelectionChangedEventArgs e)
       at Telerik.Windows.Controls.RadComboBox.OnSelectionChanged(SelectionChangedEventArgs e)
       at Telerik.Windows.Controls.RadComboBox.SelectItemDelayedSelectionChanged(Object item)
       at Telerik.Windows.Controls.RadComboBox.NotifyComboBoxItemMouseUp(RadComboBoxItem comboBoxItem)
       at Telerik.Windows.Controls.RadComboBoxItem.OnMouseLeftButtonUp(MouseButtonEventArgs e)
       at System.Windows.Controls.Control.OnMouseLeftButtonUp(Control ctrl, EventArgs e)
       at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)    

    Line: 54
    Char: 13
    Code: 0

  2. George
    Admin
    George avatar
    1332 posts

    Posted 19 Aug 2010 Link to this post

    Hello Ghayth Hilal,

    We are aware of this problem with RadComboBox. We start researching and investigating the cause for this issue and we will fix it in one of our future releases. You can track this progress in our Public Issue Tracking System (PITS) with Issue ID = 3146.

    Sorry for any inconvenience caused. Please do not hesitate to contact us if you require any further information.

    Regards,
    George
    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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  4. Mr
    Mr avatar
    1 posts
    Member since:
    Sep 2010

    Posted 15 Sep 2010 Link to this post

    Hello Ghayth Hilal and Telerik Team
    I'm using RadControls version 2010.2.812.1040. for SL Q2 2010, i recieving the error when i change the selection of the combobox or change value of textbox. Fortuity, I remove "Internet download Manager v 5.18" from my computer, this error disappear. I think it's one of some reason for this error. 
    OS: Window 7 64bit

    Best regrads
     
  5. Rakib .
    Rakib . avatar
    2 posts
    Member since:
    Feb 2010

    Posted 27 Sep 2010 Link to this post

    Hello,

    I am getting same error. Any update on this?

    Thanks
  6. George
    Admin
    George avatar
    1332 posts

    Posted 30 Sep 2010 Link to this post

    Hi Rakib,

    This issue is fixed in our latest internal build. Could you please download and try it. Let us know if you still have any problems with RadComboBox control.

    Regards,
    George
    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
  7. Rakib .
    Rakib . avatar
    2 posts
    Member since:
    Feb 2010

    Posted 30 Sep 2010 Link to this post

    Hi George,

    I downloaded SP2 release and its ok now.

    Thanks
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