VBA User Forms videos | Excel VBA Forms Pt 4 - Validating Controls

Posted by Andrew Gould on 31 March 2016

Validation is all about making sure a user has entered sensible values in a control. This video shows you how to use the before- and afterupdate events of a textbox to prevent a user continuing when they've entered invalid data. You'll learn how to check if a value is a number or a date and how to modify the properties of controls at runtime to indicate that there's a problem.

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28 Jan 19 at 00:57

Hi Wise Owl,

Great training video as always - the best training videos bar none! Look forward to any future videos.

I wanted to ask if you also use 'KeyPress' and 'KeyDown' to validate controls and what your opinion is on using that method?


28 Jan 19 at 10:56

Thanks Michael, happy to hear that you've enjoyed the videos!

I'm afraid that I don't have any particular insight on the KeyPress and KeyDown events as I don't tend to use them.  To me it's always seemed like overkill to test each keypress for the systems that I've worked on!