Windows Form control property issue

[C# Programming]

I need to have one of my properties in a custom control to open the "open file dialogue" window when selected.

I have googled around but it keeps throwing me .net controls!

At present I have a property and when "set" opens the dialogue, but this forces me to enter some text and open it only when deselected...

Just to clarify:
1: Click on the property name in visual studio designer property area
2: it opens the open file dialogue

Thanks http://www.barakasoft.com/script/Forums/Images/smiley_smile.gif