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NSNumberFormatter doesn't stop a user entering letters? - Mac Programming

Hi, I have a NSPanel with a NSForm which has some NSNumberFormatters attached to it's NSFormCells. It seems that the NSNumberFormatter doesn't stop the user entering letters, though it does prevent the user tabbing away from the NSFormCell. Unfortunately it does not prevent the user pressing the Apply button on the panel. Is there any way to get the NSNumberFormatter to stop the user entering letters? TIA, Fred...

  1. #1

    Default NSNumberFormatter doesn't stop a user entering letters?

    Hi,
    I have a NSPanel with a NSForm which has some NSNumberFormatters
    attached to it's NSFormCells. It seems that the NSNumberFormatter
    doesn't stop the user entering letters, though it does prevent the user
    tabbing away from the NSFormCell. Unfortunately it does not prevent the
    user pressing the Apply button on the panel.

    Is there any way to get the NSNumberFormatter to stop the user entering
    letters?

    TIA,
    Fred

    Fred Guest

  2. #2

    Default Re: NSNumberFormatter doesn't stop a user entering letters?

    In <bepc4f$7ig4t$1ID-149992.news.uni-berlin.de> Fred wrote:
    > Is there any way to get the NSNumberFormatter to stop the user
    > entering letters?
    Yes, just override isPartialStringValid... m.

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    matt neuburg Guest

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