Too bad that the Validation event of a textbox is fired AFTER the SelectedIndexChanged event is fired of the listview you clicked on while editing something in the textbox.

Yes, weird! I hadn't noticed that before but it is very odd. It's times like these I wish I had the source for the Framework to see what is really going on!

A quick peek at the ListView through Lutz Roeder's Reflector however did reveal a lot of interesting behavior in the WndProc method of the control. Unfortunately it wouldn't decompile all the jumps so I couldn't tell exactly what was going on in the method.

I did notice, however, that the ListView will raise the "Enter" event before the "SelectedIndexChanged" event. Maybe you could hook up some custom processing in an "Enter" event handler? Chris Sells has an example of how to invoke the validation method of a control programatically through reflection. If you're interested, I can dig up a sample.

Hey Paul, I'd be very interested in that example. Sometimes it'd be easier to fire the event than to setup a method that is basically doing the same thing.

Programmatically invoking the Validating event on Windows Forms controls

Mark - see this post for details:

http://dotnetjunkies.com/WebLog/plaudeman/archive/2004/04/12/11215.aspx

FYI, when the link above, "Extending Windows Forms with a Custom Validation Component Library, Part 2", is clicked, an error occurs saying "Location Cannot Be Found".