RAF,
Here is the general overview for the different ways to hook into the
property grid when editing:
http://msdn2.microsoft.com/en-us/library/ms171839.aspx
Note, you want a modal dialog editor.
There is also an excellent two part series from MSDN magazine on the
topic:
http://msdn.microsoft.com/msdnmag/issues/03/04/Design-TimeControls/default.aspx
http://msdn.microsoft.com/msdnmag/issues/03/05/Design-TimeControls/default.aspx

Signature
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard.caspershouse.com
> Hi,
>
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>
> RAF
R.A.F. - 21 Oct 2007 10:08 GMT
thx for info Nicholas
> RAF,
>
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>
> http://msdn.microsoft.com/msdnmag/issues/03/05/Design-TimeControls/default.aspx