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Validation for multi-line textbox

Question asked by jsfree on Dec 19, 2017
Latest reply on Dec 19, 2017 by sojanm

I have a multi-line textbox that I want to make sure contains at least 20 characters or more. If it does not, I need an error to be thrown.

 

Any help is greatly appreciated, I searched the forums and couldn't find exactly what I am wanting to do.

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