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Concurency Issue

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  • T Offline
    T Offline
    twsted f8
    wrote on last edited by
    #1

    Hi Friends Am in a bit of a pickle, and I now don't know how to fix this. I am trying to update the data in my dataset, and I am getting a concurrency violation. The application I am developing is to be used by, only one user, and there is no way that some one else could be using the dataset. What could be the cause of this? Thanks , I hope u will be able to help me.

    D 1 Reply Last reply
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    • T twsted f8

      Hi Friends Am in a bit of a pickle, and I now don't know how to fix this. I am trying to update the data in my dataset, and I am getting a concurrency violation. The application I am developing is to be used by, only one user, and there is no way that some one else could be using the dataset. What could be the cause of this? Thanks , I hope u will be able to help me.

      D Offline
      D Offline
      Dave Kreskowiak
      wrote on last edited by
      #2

      Concurrency isn't just a multiuser issue. There are more than a couple of ways your own code can think it's updating records that it's not. The most common of which happens when your code goes to update a single record (such as when using the DataAdapter or TableAdapter), the number of affected records comes back 0 or greater than 1, because your table's primary key isn't setup properly, or if it doesn't even have one.

      A guide to posting questions on CodeProject[^]
      Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
           2006, 2007

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