I am wanting a text field that only allows numbers, upper and lowercase letters and spaces. No special characters. How would I do that?
Hi Larissa. You can do that with the gform_field_validation filter. There are several discussions of that on this site. Here is one which shows the approach: the details about which characters to allow/block are slightly different:
If you need help modifying that code to meet your needs, please let us know here, or open a support ticket:
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