Windows Form Validation

[Bradley M. Small]

On an application, I have several boxes and I want to validate such that
someone can't enter a number too big. However, once they do enter a number
in that box, I want to immediately do something else (dynamically populate a
list box).


I have been able to use Text1Validating with e.Cancel=True to stop then from
leaving the field, but when I do Text1Changed it is still called. Am I
perhaps using the wrong events?

Also, I would like to beep and select all text in that textbox or somehow
otherwise alert the user that they are attempting something invalid, how
best to handle this?

 

[Bradley M. Small]

Ok so now that I have been pointed to the errorProvider, how do I allow my
exit button to exit the app without validating the textbox? I tried setting
CausesValidation to false, but it still triggers it.