You might want to verify if the scanner sends a code first or last or both. Most of them do. Other applications have the same issue. They need to know if the data is coming from a scanner.

>Thought of that, but the scanners at each station are used with other applications (some commercial). So doing this would prevent users from using the scanner to scan text into those applications.
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>Also, I have no control over the barcode. They are scanning part numbers and other information that suppliers put on incomming materials. To get all their suppliers to put a special character at the beginning and end of the barcode would be virtually impossible.
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>>Since most barcode scanners are keyboard wedges (ie they produce keyboard input) that may be tough.
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>>Maybe program the barcode scanner to send some type of prefix character that can be checked/removed in the textchanged event?