Closed Issue: Exposing a cancellable Closing event in the DockingManager [6490]

Hi, First of thanks for the great work on Avalon Dock. It is an invaluable asset to my project. I wanted to know if it is possible to add a cancellable Closing event to the DockingManager that would get fired when any of its docking contents try to close. the client could then cancel the operation if and as he/she sees fit.
Thanks again for Avalon Dock, you rock!
Sean
Comments: Old or obsolete issue. Please ask for reopen if needed in version 2.0