Events get unsubscribed after dragging of tabcontrol

Events get unsubscribed after dragging of tabcontrol

Posted by: vinothkumar.r2210 on 13 May 2020, 1:11 am EST

• 

  vinothkumar.r2210

  • Post Options:
  • Link
    Copy
  • Jump To Answer

  Posted 13 May 2020, 1:11 am EST

  Hi,
  
  I have added one button in DockTabControl ControlTemplate.In the loaded event of DockTabControl i have assigned click event for that button. When clicking, click event got executed. After dragging of DockTabControl, click event is not fired.

  private void DockTabControl_Loaded(object sender, RoutedEventArgs e)
  
  {
  
  var tab = (DockTabControl)sender;
  
  if (tab != null)
  
  {
  
  Button filterButton = FindChild(tab, “FilterButton”);
  
  if (filterButton != null)
  
  {
  
  filterButton.Click += FilterButton_Click;
  
  }
  
  }
  
  }

      private void FilterButton_Click(object sender, RoutedEventArgs e)
      {
          FilterExecutedEventArgs filterExecutedEventArgs = new FilterExecutedEventArgs("Test");
          FilterEventHandler filterEventHandler = FilterExecutedEvent;
          if(FilterExecutedEvent != null)
          {
              FilterExecutedEvent(sender, filterExecutedEventArgs);
          }
      }
  

  Thanks and Regards,
  
  Vinoth Kumar Ravi

• 

  Ruchir.Agarwal

  

  • Post Options:
  • Link
    Copy

  Posted 13 May 2020, 11:53 pm EST

  Hi Vinoth,

  This is expected. When you drag the DockTabControl out of DockControl, the items of DockControl change, That is, before dragging the C1DockControl.Items would have a child (like DockGroup) and this child will further contain the DockTabControl in Item’s collection, but as soon as you float the DockTabControl, its parent changes as it becomes a direct child of DockControl.
  
  So, you should keep track of DockControl Items and add handler to the DockTabControl that has the specific name.

  Thanks,
  
  Ruchir

• 

  vinothkumar.r2210

  • Post Options:
  • Link
    Copy

  Posted 14 May 2020, 5:04 pm EST

  Hi Ruchir,

  Thanks for the reply. The i have to assign handlers to controls whenever DockControl ItemDockModeChanged.

  Thanks and Regards,
  
  Vinoth Kumar Ravi