I want the addition of a String Pattern property that applies a String pattern to the input prior to the input Textbox being registered.
Say I wanted to limit Text input to numbers or alphanumeric characters, I would have to wait for the user to input the text, then after I run a check and perform changes. It would be much cleaner to simply restrict and filter out the text prior to it being display in the input box. This way only the necessary and allowed input is displayed and none of the other undesired characters.