Except you want to make sure you only allow the +- as the first character. Otherwise you'll end up allowing some crazy formula like -9 +7-5+77-210...

Greg

On May 8, 2006, at 9:11 PM, Keith Hutchison wrote:

Keyown event

trap for and allow chr(8) backspace, chr(127) delete, chr(9)
+-0123456789

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