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Showing results for tags 'preprocessing'.
Hello, I am trying to create an input box that when a user types something like the character "." that it will prevent that character from entering the input box and display a message stating why the input was prevented. Something like what $ES_NUMBER style does for the input box, but for a floating point number. I can work out the logic of how to do that, but I am not yet sure how to correctly capture keyboard input before it arrives IN the input box. This should only run on the particular input box in question as it is an aid to help clean up user input before it gets sent to a SQL query.