How to exclude numbers and special character?

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How to allow only alphabet characters in text fields?

Yes, you can do this, but you have to conditionally test the input, just like you would for length of input, etc. Here are two methods to do this, depending on how you would like things to look. AlphaOnlyTextInput.rp (59.8 KB) Method A tests the text entered on an input field and erases the last character entered if it is not alpha. This does have a side-effect of briefly showing the non-alpha char, which you may not like. However, this does at least provide some feedback that the non-alpha k…