In WPF, How can I disable ContextMenu with WindowsFormsHost Control?

it has taken lots of time to find answer of this. but i've not solved this problem, yet.

Answers i've found are like these(all of them doesn't work):

1. [object].ContextMenue = new ContextMenu() or new ContextMenu(null)

2. shortCutsEnabled = false

   • this Case looks like just for the TextBox;

3. I tried catching Event "ContextMenuOpening" and access Parameter named 'ContextMenuEventArgs'... but... failed...

Please Help.................................