Home / Community & Support / Developer Productivity Tools Forums / WinForms > MultiColumn ComboBox > Prevent modification based on certain criteria (aka SelectedValueChanging)

• Francois

  Posted on Oct 31, 2011 (permalink)

  Hi,
  
  I would like to be able to prevent the user to change the value on certain situations but I cannot find an event that would help me do that.
  
  I've found the MultiColumnComboBoxElement.TextChanging event, but that only works when the modification is made with the keyboard. I would need to be able to handle also the modifications made by the mouse, including the mouse wheel.
  
  Any ideas?
  
  Thanks!

  Reply

• Stefan Stefan

  Posted on Nov 3, 2011 (permalink)

  Hello Francois,
  
  Thank you for writing.
  
  I would suggest using the CellValidating event of the EditorControl for your scenario:
  

  radMultiColumnComboBox1.EditorControl.CellValidating += new Telerik.WinControls.UI.CellValidatingEventHandler(EditorControl_CellValidating);

  
  Please give it a try and let me know if ti works for you.
   
  Best wishes,
  Stefan
  the Telerik team

  Q2’11 SP1 of RadControls for WinForms is available for download (see what's new); also available is the Q3'11 Roadmap for Telerik Windows Forms controls.

  Reply

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