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I have a Notes textbox in my InfoPath form which will contain multiple lines of text.

I wanted to add a validation so it can only contain Alphabets, Numbers and period . No special characters like ! @ etc are allowed.

I tried

description does not pattern [A-Za-z]([ ][A-Za-z]) or

description does not pattern .\d. or

description does not pattern . or

But it throws validation error when I type "please help 123."

Please help!!!

Thanks

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  • Anybody Please help!!! – user6167232 Dec 4 '20 at 1:16
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The conditions you use accept only exact same format as in your expressions, which means the input can only format as A A or 0 or ..

Try this one instead:

[A-Za-z0-9\.\s]*

enter image description here

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