Crash with Tooltips and floating DockPanels

4 posts, 0 answers
  1. johns
    johns avatar
    20 posts
    Member since:
    Jul 2007

    Posted 17 Oct 2007 Link to this post

    Hi,

    I've curently have an application that crashes when a tooltip of a control is first displayed while it's parent dockpanel is floating, and then after it is docked and the tooltip is to display again, it crashes.

    You can easily duplicate the crash by creating a form with a DockingManager and one DockPanel in the Designer.  Add a label to the dockpanel and add a ToolTipTextNeeded EventHandler.
     
    1. Float the dockpanel by either dragging it or using the drop down menu.
    2. Hover the mouse pointer over the label to see tooltip.
    3. Re-dock the panel.
    4. Hover the mouse point over the label and crash

    I noticed similar behavior when using a auto-hidden dockpanel in the floating dockpanel.

    I'm not sure if this occured before the ServicePack that attempts to fix the DockPanel Leaking issue or not.

    Thanks,

    John
  2. johns
    johns avatar
    20 posts
    Member since:
    Jul 2007

    Posted 17 Oct 2007 Link to this post

    I forgot to mention that currently also use another third party control that is hosted in a DockPanel, and instead of crashing when the tooltip is suposed to display after the Panel is re-docked, the tooltip doesn't work any more.    If like the simple example I described I first display a tooltip before floating the panel, all is good.

    John
  3. UI for WinForms is Visual Studio 2017 Ready
  4. Julian Benkov
    Admin
    Julian Benkov avatar
    1135 posts

    Posted 22 Oct 2007 Link to this post

    Hi johns,

    Thank you for the detailed steps. We reproduced the problem and are still investigating what is causing it. We will reply back as soon as we have further information. Thank you in advance for your patience.
     

    Sincerely yours,
    Julian Benkov
    the Telerik team

    Instantly find answers to your questions at the new Telerik Support Center
  5. Dimitar Kapitanov
    Admin
    Dimitar Kapitanov avatar
    632 posts

    Posted 04 Mar 2008 Link to this post

    Hello johns,

    We were unable to reproduce the behavior you described in our BETA release. If the issue still persists in the latest version, please let us know.

    Greetings,
    Dimitar Kapitanov
    the Telerik team

    Instantly find answers to your questions at the new Telerik Support Center
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