Is there a way to continuously check when a user types into a field and allows only certain characters?
Something like this: on checkForInput if the char is not "a,g,t,c" ---do nothing else remove last char in fld "fldTest" end checkForInput This would only allow to enter the chars a,g,t or c into a field. How can I check for field input only while the cursor is within the field ? If I can not do this I will have an idle handler running all the time. Is there also a way to limit the number of chars which a user can type? It is important to check while typing, not when one leaves the field, otherwise the user has to enter or change a lot of text in some cases. Cheers Rolf
