Handler Stack Overflow?!?!?!

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  • tomb
    #1

    Handler Stack Overflow?!?!?!

    Please help!

    I have a handler in a class that handles when a column in a table is
    modified, as such:

    dtWhatif = dsOp.Tables("wh atif")
    AddHandler dtWhatif.Column Changed, New
    DataColumnChang eEventHandler(A ddressOf Whatif_Changed)

    When testing this, I got an error: An unhandled exception of type
    'System.StackOv erflowException ' occurred in system.dll

    So I put a debug statement in to see why the stack is overflowing. This
    handler was called 4082 times! All I did was change the value in one
    cell of a datagrid!

    Why? Why?

    Tom


    Tags: None
    • Slow Learner
      #2
      Re: Handler Stack Overflow?!?!?!

      What are you doing in the handler?




      "tomb" <tomb@technetce nter.com> wrote in message
      news:5pdWe.678$ 7u6.189@bignews 6.bellsouth.net ...
      Please help!

      I have a handler in a class that handles when a column in a table is
      modified, as such:

      dtWhatif = dsOp.Tables("wh atif")
      AddHandler dtWhatif.Column Changed, New
      DataColumnChang eEventHandler(A ddressOf Whatif_Changed)

      When testing this, I got an error: An unhandled exception of type
      'System.StackOv erflowException ' occurred in system.dll

      So I put a debug statement in to see why the stack is overflowing. This
      handler was called 4082 times! All I did was change the value in one cell
      of a datagrid!

      Why? Why?

      Tom


        Comment

        • Tom B
          #3
          Re: Handler Stack Overflow?!?!?!


          At the moment I'm not doing anything in the handler except calling an
          empty function. I just wanted to test the handler. Obviously it
          doesn't work as expected, which was to be called once.

          Tom


          *** Sent via Developersdex http://www.developersdex.com ***

            Comment

            • Jay B. Harlow [MVP - Outlook]
              #4
              Re: Handler Stack Overflow?!?!?!

              Tomb,
              Where is your AddHandler statement?

              It sounds like you are attempting to add a handler for every row in your
              DataTable or something similar.

              You only need to use AddHandler once, I normally use it when I create or
              "acquire" the DataTable.

              Can you post a complete but short (15 to 20 lines) of code that demonstrates
              the problem.

              Hope this helps
              Jay

              "tomb" <tomb@technetce nter.com> wrote in message
              news:5pdWe.678$ 7u6.189@bignews 6.bellsouth.net ...
              | Please help!
              |
              | I have a handler in a class that handles when a column in a table is
              | modified, as such:
              |
              | dtWhatif = dsOp.Tables("wh atif")
              | AddHandler dtWhatif.Column Changed, New
              | DataColumnChang eEventHandler(A ddressOf Whatif_Changed)
              |
              | When testing this, I got an error: An unhandled exception of type
              | 'System.StackOv erflowException ' occurred in system.dll
              |
              | So I put a debug statement in to see why the stack is overflowing. This
              | handler was called 4082 times! All I did was change the value in one
              | cell of a datagrid!
              |
              | Why? Why?
              |
              | Tom
              |
              |


                Comment

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