C validating canceleventargs updating the flip usb driver avr
I have some code that checks and makes sure that when the users enters in the field an integer from 1 - 10 has to be input.
Visit Stack Exchange In a Win Form I'm doing initial validation in the Form. To make the code short only three fields are shown in the code.
Now if I click either button1 or button2 or button3 it is showing the massage box. ie the error message should be shown only on the click of button1(ie my save button) and not on the click of other buttons. And in any case, valid format, existing domain (check via DNS lookup) doesn't tell you whether the specific email address exists (or whether anyone will actually read it).