Hi,
I got the sample code "DesignerHost" from "INFO: Code Sample That
Demonstrates How to Create a Custom Form Designer by Using Visual C# .NET"
http://support.microsoft.com/default.aspx?scid=kb;en-us;813808.
The sample code has no these features "copy, cut, paste, undo and redo", I
wanna implement them. After seaching on internet, I got the result" to
implemnt copy, cut, paste, you must implement IDesignerSerializationService
and add this service. I wrote a SampleDesignerSerializationService.cs, the
sample has copy,paste and cut features.

Now I such on implmenting undo/redo feature. In the sample code, the
copy/paste command is added by default when System.Windows.Forms.Form is
created. Using "MenuCommandSerice.GlobalInvoke" can call the copy/past
functions. But the undo and redo standard commands is not added by default.
I want to know which attribute should be added on the form, I can invoke the
undo/redo function.

And I am not sure, whether any other service should be add to the
DesignHost, The the undo/redo feature can works.

Thanks

Tian Qiang