Yes, I use a button to exit.

How do you set CausesValidation to false when it won't accept it?

I commented out the code in the Leave Event and put the code into the Validation Event. Should I have wiped out even the commented code?

Cecil

>How are you exiting the application? By clicking on a Button? If so, Chris's suggestion should work. By setting that button's .CausesValidation property to false, and having the button's .Click event handler execute the Application.Exit() method, the only event on the text box that should fire *is* the Leave event. If you have moved your code out of the Leave and into the Validating or the Validated event, it will not fire.