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TK Entry - Validating Inputby Dirk80 (Pilgrim) |
on Mar 06, 2013 at 13:53 UTC ( [id://1022011]=perlquestion: print w/replies, xml ) | Need Help?? |
Dirk80 has asked for the wisdom of the Perl Monks concerning the following question: Hello, I want to validate the input of an entry widget. Only positive hexadecimal digits shall be allowed. Here my code:
After the input of a valid character I can never remove it again. The first character is always there then. In the dumped output I can see that the character should be gone, but it is still visible in the entry. Am I doing something wrong? Is it a bug? Thanks alot for your help. Greetings, Dirk
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