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Refresh Panel Card?

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  • Refresh Panel Card?

    I have a button whose enable/disable property is controlled by a session variable. The button is in a panel card. The session variable is changed using code. Even though the session variable has changed, the button enable/disabled state remains the same. The only way I can make the button refresh is to reload the page.

    How do I force the button's panel card to refresh/update/reload?

    I've tried watching videos and searched the message board and I can't figure this out.

    Thanks,

    Ron
    Alpha 5 Version 11
    AA Build 2999, Build 4269, Current Build
    DBF's and MySql
    Desktop, Web on the Desktop and WEB

    Ron Anusiewicz

  • #2
    Re: Refresh Panel Card?

    It would be better to enable / disable client side.
    One way is in the callback have it set a dummy field value, for example an unbound numeric field set to 0 or 1, then have to buttons enable property look at that field.
    ex,
    An unbound hidden (client side) field called ButtonEnableState. In your buttons client side enable property have 'ButtonEnableState = 1'.
    You can set the default value of the hidden unbound field to 0 - Button is Disabled or 1 - Button is Enabled.

    Otherwise you would probably have to use a javascript function to do a callback to get the new value then set the buttons enable state. That is a lot of work to change the buttons enable state.
    Win 10 64 Development, Win 7 64 WAS 11-1, 2, Win 10 64 AA-1,2, MySql, dbForge Studio The Best MySQL GUI Tool IMHO. http://www.devart.com/dbforge/mysql/studio/

    Comment


    • #3
      Re: Refresh Panel Card?

      I prefer using State Variables over Session Variables. Session Variables are a bit too finicky to work with for me. I never get the feeling that they're persisted all the time, and you kinda have to jump through a couple of hoops to get them right or reflect their true values. State variables are easily accessible. If I'm working with one or more embedded components to which I need to pass data through their arguments setup, then the main component (which may use session vars, if I'm forced) will establish what Frank suggests... controls which hold those session values. Then I pass along argument data based on those controls and never bother with the session vars again.

      However, if you really want to continue with session vars in the manner you're using them... then you need to refresh the client-side stuff. You can return this from the XBasic code that resets your session var and it will refresh the enable expression on your button.

      Code:
      yourXBasicFunction = "{dialog.Object}.refreshClientSideComputations();"
      But beware... this will refresh everything that is show/hide, enable/disable, etc.

      Comment


      • #4
        Re: Refresh Panel Card?

        The session variable is changed using code. Even though the session variable has changed, the button enable/disabled state remains the same
        since session is in the server, the ux/dialog that resides in the browser does not know that the value has changed unless a call is made to the server. what ever the code that is changing the session variable may be used to change some value here in the ux/dialog. if that is possible in your situation then the ux will reflect that change in the buttons.
        thanks for reading

        gandhi

        version 11 3381 - 4096
        mysql backend
        http://www.alphawebprogramming.blogspot.com
        ggandhi344@gmail.com
        Skype:ggandhi344@gmail.com
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