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NSOutlineView setDataSource -> exception - Mac Programming

Hello NG, Sometimes when I set a new data source to NSOutlineView I get a exception : Exception raised during posting of notification. Ignored. exception: *** -[NSCFString stringByAppendingString:]: nil string (or other) argument. Any helpful ideas ? Thank you for your time and help. Florian...

  1. #1

    Default NSOutlineView setDataSource -> exception

    Hello NG,

    Sometimes when I set a new data source to NSOutlineView I get a exception :

    Exception raised during posting of notification. Ignored. exception: ***
    -[NSCFString stringByAppendingString:]: nil string (or other) argument.

    Any helpful ideas ?

    Thank you for your time and help.

    Florian


    Florian Guest

  2. #2

    Default Re: NSOutlineView setDataSource -> exception

    On Sun, 18 Jul 2004, Florian Zschocke wrote:
     

    When debugging a mystery exception, the first thing you should do is
    figure out what's throwing the exception and where. You can do this by
    placing a breakpoint on -[Nception raise]. (Type 'break -[Nception
    raise]' in the gdb console, or open the Breakpoints window, click new, and
    type that.)
    Michael Guest

  3. #3

    Default Re: NSOutlineView setDataSource -> exception

    Michael Ash <com> wrote: 
    Thank you Michael 
    I could find the error with your advice. Sometimes I get really afraid about all the
    things I don't know.

    Florian

    Florian Guest

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