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Using global variables in xdialog

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    #1

    Using global variables in xdialog

    The only way I can get an xdialog to use a global variable is to convert the action script to xbasic and then add xbasic to change the scope of the variable to global, i.e. the action scripting seems to have no way to use a global variable directly. Is this the case or am I missing something?
    Tags: None
    #2
    Re: Using global variables in xdialog

    When are you setting to variable scope. Globals are available to everything. Do you have an example?
    -----------------------------------------------
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    Mark Pearson
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      #3
      Re: Using global variables in xdialog

      Mark, I think Nick is talking about the scope the action scripting genie provides for variables you supply to the genie when designing a dialog box. By default the scope for the variables used in the genie generated xdialog code is set to SHARED.

      Nick, I think this is working as designed. It's a limitation of the action scripting genie. Your post suggests this is a limitation of the xdialog code itself, and it is not. You are always free to write your xdialog code from scratch if you wish, or modify it as you are doing.

      Comment

        #4
        Re: Using global variables in xdialog

        No, I am not suggesting it's a limitation of the xdialog code itself. As you say, it's a limitation in the action scripting. If you use action scripting for a dialog box, the variables default to SHARED and can't be changed, even if you have already defined the same variable previously as GLOBAL. To change the scope of a variable to GLOBAL, you have to decompose the action script to xbasic , or move the data to a GLOBAL variable in a separate statement after the dialog box is actioned. It just seemed like a strange limitation.

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          #5
          Re: Using global variables in xdialog

          Nick, if this is important to you remember there's a wishlist forum where you can post product enhancement requests.

          It's a mistake to think that the shared variable and the global variable are "the same variable" as you say. Xbasic permits variables with identical names to live in local, shared and global spaces. They are three different variables even though they may have the same name.

          Comment

            #6
            Re: Using global variables in xdialog

            Yes you can set the variable to global with Action Script.
            In the very last page of the dialog, change the variable to Global.

            Comment

              #7
              Re: Using global variables in xdialog

              As Gabe noted - this is the visual...xdialogGlobalVar.png
              Al Buchholz
              Bookwood Systems, LTD
              Weekly QReportBuilder Webinars Thursday 1 pm CST

              Occam's Razor - KISS
              Normalize till it hurts - De-normalize till it works.
              Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
              When we triage a problem it is much easier to read sample systems than to read a mind.
              "Make it as simple as possible, but not simpler."
              Albert Einstein

              http://www.iadn.com/images/media/iadn_member.png

              Comment

                #8
                Re: Using global variables in xdialog

                Originally posted by Tom Cone Jr View Post
                Nick, if this is important to you remember there's a wishlist forum where you can post product enhancement requests.

                It's a mistake to think that the shared variable and the global variable are "the same variable" as you say. Xbasic permits variables with identical names to live in local, shared and global spaces. They are three different variables even though they may have the same name.
                Yes, I know that, although it would IMHO be very confusing. Most software does not allow it; in particular to use the same name for a shared or local variable that is already in use for a global variable is very bad practice.

                Comment

                  #9
                  Re: Using global variables in xdialog

                  Al, Gabe - thanks, I had missed that. It would have been nicer if the "Variable Input" screen had the usual drop-down to allow you to select existing global variables.

                  Comment

                    #10
                    Re: Using global variables in xdialog

                    Originally posted by Nick Oldfield View Post
                    Yes, I know that, although it would IMHO be very confusing. Most software does not allow it; in particular to use the same name for a shared or local variable that is already in use for a global variable is very bad practice.
                    OK.. even though this has been brought up and discussed before, let me add to the confusion with the hope of eliminating all confusion.
                    What happens if you dim a local, a shared and a global variable all with the same name?
                    A-Does alpha save all three?
                    B-Does alpha overwrite the existing variable?
                    c-Which one overwrites which one?
                    D-If none of the above, then What happens?
                    E-Is this worth a separate thread altogether?
                    I think so. If nothing else, for reference purposes.
                    So here it is in a new thread all by it self.

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