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Change modeless window to modal

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  • Change modeless window to modal

    Is there a function that can change the mode of a form that is already opened in modeless window to a modal window (the user cannot work in any other window in A5, or make selections from the menu, or toolbar) and a function to change it back to modeless. I know you can open a form in modal window, but in my case the form is already open in modeless window. I can't use From.View() or Form.Dialog() because they would open a second instance of a form that is already open.

  • #2
    Re: Change modeless window to modal

    I am sure there are several way to do this. I haven't tried this myself but for example you could try using the form "Data_Entry_Style" property.

    Whether the form should use the "System default", "Modal", or "Modeless" data entry styles, set the form's property thus:

    :formname.data_entry_style (as type C) = "Modal"

    Comment


    • #3
      Re: Change modeless window to modal

      Hi Brett:
      Modal/modeless data entry style and modal/modeless window are not the same. In a modal window the user cannot do anything else (like open any other form or use the menu) except work in the current window. It is only after he has closed the modal window that he can do other things in A5. A modal window ca have a modeless data entry style.

      I am trying to find a method/way to change the mode of a window from modeless to modal and from modal to modeless. It seems that this attribute is inseparable form the open form action.

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      • #4
        Re: Change modeless window to modal

        Not sure why you would want to do it, but one way that might work would be to use <form>.swap() to alternate between two copies of the same form, one modal and one modeless.

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        • #5
          Re: Change modeless window to modal

          Hello Dr Wayne:
          I am precisely using "Swap Form" action to alternate between the 2 forms:
          I have 2 forms: FormA where user cannot enter/delete/modify and a formB where user can only enter/modify record. I am using "Swap Form" in action scripting to switch between the 2. A button on FormA to switch to FormB and a button on FormB to switch back to FormA. My problem is:
          - if FormA is open as modeless window and I click on the button to switch to FormB, FormB is in modelss window; I can keep working in A5 while FormB is still open, that's precisely what I want to avoid.
          - if FormA is open in Modal window, the problem is I cannot do anything else like querry navigate, etc..., however when I switch to FormB, the window is modal which is what I want.
          If there is a function/method that can change a form from modeless to modal, I could put in the button on FormA 2 actions: switch to FormB, change mode to modal window. The button on Form B would have similar actions: Swich to FormA, change mode to modeless.

          Comment


          • #6
            Re: Change modeless window to modal

            If swap form won't work, you can still alternate between the two forms.
            Let's say you have two forms, FormA, which you use for navigation, and FormB, which you're using only for data entry.
            Your modeless FormA can have a button that does this:

            f=form.zoom_to_record("FormB","dialog")
            parentform.close() ' closes FormA

            Now you should be in FormB and if it's modal, you can't leave it for anything else.

            When you leave FormB, you have a button that does this:
            f=form.load("FormA")
            f.show()
            f.activate()
            parentform.close()

            or, if you prefer,
            f=form.zoom_to_record("FormA","form")
            parentform.close()

            which will load FormA and close FormB.
            You can also synchronize FormA and FormB to the same record using the base table's filter_expression and order_expression (to prevent navigation), or query syntax (which allows navigation), as in
            f=form.load("FormB")
            f:Tables:customer.filter_expression="custID='00011'"
            f:Tables:customer.order_expression="custID"
            f:Tables.customer.query()
            ' prevent moving off this record or deleting it
            f.restrict_navigation=.t.
            f.restrict_enter=.t.
            f.restrict_delete=.t.
            f.show()
            f.activate()

            You can do almost anything you want with the alternate form before you display it.
            Hope this helps.

            Comment


            • #7
              Re: Change modeless window to modal

              Gaby, I don't think you can do this without closing the current form and re-opening it as dialog. An alternative would be to open a second form as dialog. Here's an example of the latter approach. -- tom
              Last edited by Tom Cone Jr; 01-04-2009, 11:13 PM. Reason: Improved the attached example

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              • #8
                Re: Change modeless window to modal

                Thank you both for your input. I'll study the 2 approaches.

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