Force The User To Enter Valid Value In Text Box
Using the Validate event,
you can assure that the user will enter valid value in the text box. "Valid
Value" can be anything you define: Phone Number, date, number in certain range,
certain strings, and so.
Until he done so, all the other controls are
disabled, and he cannot exit the text box.
In this example, the user will not
be able to exit the first Text Box, until he type "abc".
To check this
to press the button or enter to the second text box.
Add 1 Command Button and
two Text Boxes to your form.
Text1_Validate(Cancel As Boolean)
Text1.Text <> "abc"