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Series of Operations

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  • Series of Operations

    I must have missed something along the way a few versions ago.

    I have a script that gathers info from you and runs an Operation_startup("import records","",.t.); then it gets some more info and runs a Operation_startup("Append Records","imported",.t.); then 2 other similar operations.
    In V8 I could separate these operations with an xbasic_wait_for_idle() and run them all in one script. In V9 I had to separate these into 4 buttons (I needed a quick fix) cause there was nothing I could find to make the system wait for you to finish the operation before the code kept running into the next process.
    Now I'm making some mods to this app in V10 and finding the same thing - I can't figure out a way to stop the code from continuing while you are processing the operation.

    Having it all under one script isn't of paramount importance, but it makes the process a lot more streamlined.

    Can someone tell me what I missed catching on to?


  • #2
    Re: Series of Operations

    Duane, put the separate steps into their own user defined functions, then let your script call them one after the other. The script will not advance to the next udf statement until the result of the previous function is computed.


    • #3
      Re: Series of Operations

      place the xbasic generated by each the operations into their own UDF (User Defined Function). Then call each function....each will finish before the next starts....

      How?....create a new it whatever....on the next screen paste inbetween the function lines the xbasic copied from the operation. Save. That's it. Unless you plan on using the operation with different parameters and such you don't need any arguments defined.
      It is only when we forget all our learning that we begin to know.
      It's not what you look at that matters, it's what you see.
      Henry David Thoreau


      • #4
        Re: Series of Operations

        Thanks Tom & Mike, that's a great idea

        Was it a threading thing that changed or what happened along the way to mess me around ?



        • #5
          Re: Series of Operations

          Duane, I don't recall anything specific changing. It's always been a bit of a problem when you run operations back to back. In the same way Windows multi-tasks print jobs it multi-tasks disk activity. The use of custom UDF's has been recommended solution for this for a long time.


          • #6
            Re: Series of Operations

            Thanks for the reply

            I guess I must have just been lucky before when it worked 2 or 3 years ago.

            Now I know how to handle multiple operations in a stable way.