Cancel ToolStripDropDownButton dropdown

Question

I need to programmatically cancel the dropdown of a ToolStripDropDownButton in the DropDownOpening event. However I cannot figure out a way to achieve this.

Is there any particular reason you cannot disable the button when the operation is not valid? — Fredrik Mörk, Aug 03 '12 at 11:52
Which is indeed the best way, there's no support for canceling it. — Hans Passant, Aug 03 '12 at 12:03

score 0 · Answer 1 · answered Aug 03 '12 at 15:11

You can either do nothing in the opening event, or disable the control so I can't be interacted with to even generate the opening event:

toolStripDropDownButton.Enabled = false

http://msdn.microsoft.com/en-us/library/system.windows.forms.toolstripitem.enabled

Cancel ToolStripDropDownButton dropdown

1 Answers1