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Cascading lists limit

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    Cascading lists limit

    I just realized there is a limit to the cascading lists. Is there any way around this? I still have info I need to add, is there any other way I can do this?
    (Alpha 5 Ver. 8)

    Betsy

    #2
    Re: Cascading lists limit

    By cascading list, are you referring to a field rule lookup?

    If so, you can do it w. xbasic. I can give you a sample code snippet (it's pretty simple really).
    Peter
    AlphaBase Solutions, LLC

    [email protected]
    https://www.alphabasesolutions.com


    Comment


      #3
      Re: Cascading lists limit

      Yes, I am referring to field rule lookup?

      Comment


        #4
        Re: Cascading lists limit

        Originally posted by Betsy View Post
        Yes, I am referring to field rule lookup?
        Yes, followed by a "?"?

        I guess that means yes? ;)

        Anyway, if that's what you want, and you have hit a limit, get rid of that field rule.

        FIRST, from the controlpanel/code tab, create a new XBasic script, call it "test". Paste the following code into it and Save. Press the lightening bolt to run the code to see how it works.
        Code:
        vMenuItems = <<%a%
        Clone|Dick
        Clone|George
        Clone|Rice
        Critter|Rodent|Bat
        Critter|Rodent|Cat
        Critter|Rodent|Rat
        Critter|Rodent|Mouse
        Critter|Mammal|Dog
        Critter|Mammal|Fish
        Critter|Mammal|Pterodactyl
        Critter|Mammal|Stegasuarus
        Stooge|Moe
        Stooge|Larry
        Stooge|Curly
        a
        b
        c
        -
        Cancel
        %a%
        
        vMenuChoice = ui_popup_menu(vMenuItems)
        
        IF vMenuChoice = "Cancel" .or. vMenuChoice = ""
            End
        ELSE
            ObjectName.value = vMenuChoice
        END IF
        Then: Put a button on your form next to the field you want to fill and paste the above code in the button's OnPush event:

        In your button's code, change "ObjectName"to the name of the field object (which Alpha usually names the same as the field name). You can see the field object name by putting the form in edit mode and hovering the mouse over the field. Change the selections to your entries as needed. The pipe "|" separates the items (as you can see) and create the "menu" heirarchy. As far as I know, there is no practical limit to how many items or cascades you wish to use.
        Last edited by Peter.Greulich; 03-12-2009, 11:51 AM.
        Peter
        AlphaBase Solutions, LLC

        [email protected]
        https://www.alphabasesolutions.com


        Comment


          #5
          Re: Cascading lists limit

          I usually use a button (to the right of the field) that looks something like this - see image.
          Peter
          AlphaBase Solutions, LLC

          [email protected]
          https://www.alphabasesolutions.com


          Comment


            #6
            Re: Cascading lists limit

            Sweet. I imagine you could populate vMenuItems with entries from a table so you wouldn' have to edit the code to make changes.
            There can be only one.

            Comment


              #7
              Re: Cascading lists limit

              Originally posted by Stan Mathews View Post
              Sweet. I imagine you could populate vMenuItems with entries from a table so you wouldn' have to edit the code to make changes.
              Yes. Been there, done that. :)
              Peter
              AlphaBase Solutions, LLC

              [email protected]
              https://www.alphabasesolutions.com


              Comment


                #8
                Re: Cascading lists limit

                Peter and Stan,

                Seems to me that this is an example of a case in which you (all of us) could very easily be more helpful to new users by throwing in another code snippet outlining one way one might follow up on Stan's suggestion. Otherwise I am afraid many new users would just be at a loss as to what Stan was referring to, plus these little code snippets are a great way for new users to learn. To that end, below is one way to do what Stan was referring to:

                Raymond Lyons

                Code:
                'Create a 1 record, 1 field table with a memo field, here named Menu
                'Enter (or paste in) Peter's sample items in the memo field (here named Menuitems)
                'If for some reason it is more than 1 record you can add (as below) tbl.fetch_first()
                'Also, you could dim and set vMenuItems as a global variable in the autoexec using part of the code below.
                'This would avoid having to open and close a table every time the menu is used.
                
                dim tbl as p
                tbl=table.open("menu")
                tbl.fetch_first()
                dim vMenuItems as c
                vMenuItems= tbl.Menuitems
                
                vMenuChoice = ui_popup_menu(vMenuItems)
                
                IF vMenuChoice = "Cancel" .or. vMenuChoice = ""
                    tbl.close()
                    End
                ELSE
                    ObjectName.value = vMenuChoice
                    msgbox(vMenuChoice)    'this line is just for testing-- rem it out
                    tbl.close()
                END IF

                Comment


                  #9
                  Re: Cascading lists limit

                  Peter/Raymond,
                  Most excellent! I have tried to adapt your code so that I can use it as a menu. I have studied the Help file on same and so far have failed miserably. I have way too many buttons on my current menu's, with menu's calling sub menu's etc. What I would like to do is place all my current button scripts into the cascade, then make a selection from the cascade which (a) closes the current form, and (b) opens the relevant form, report or browse. Can I adapt your code to do this or am I barking up the wrong tree?
                  Many thanks
                  Larry Gordon

                  Comment


                    #10
                    Re: Cascading lists limit

                    Whoops - should have said I'm on V9.

                    Comment


                      #11
                      Re: Cascading lists limit

                      Originally posted by Larry Gordon View Post
                      Can I adapt your code to do this or am I barking up the wrong tree?
                      You are barking up the RIGHT tree. That is very doable.
                      Peter
                      AlphaBase Solutions, LLC

                      [email protected]
                      https://www.alphabasesolutions.com


                      Comment


                        #12
                        Re: Cascading lists limit

                        Originally posted by Peter.Greulich View Post
                        By cascading list, are you referring to a field rule lookup?

                        If so, you can do it w. xbasic. I can give you a sample code snippet (it's pretty simple really).
                        is there any limit to TREE CONTROL contain size?
                        i do not seem to show a big tree?

                        Comment


                          #13
                          Re: Cascading lists limit

                          Originally posted by Raymond Lyons View Post
                          Seems to me that this is an example of a case in which you (all of us) could very easily be more helpful to new users by throwing in another code snippet outlining one way one might follow up on Stan's suggestion. Otherwise I am afraid many new users would just be at a loss as to what Stan was referring to, plus these little code snippets are a great way for new users to learn.
                          Ray,
                          I agree so I took it a bit further. The attached example illustrates making a global variable from the values of a List table used for a popup menu.
                          Mike W
                          __________________________
                          "I rebel in at least small things to express to the world that I have not completely surrendered"

                          Comment


                            #14
                            Re: Cascading lists limit

                            I have not been on this message board for about 10-years. I recently upgraded to V11, and I find that while some things are better, some are still the way they were. I think it is kind of funny that Alpha has not been able to make some of these solutions, a permanent part of the program. After all not everyone is a great programmer, nor does everyone have the time to look through the maze of documentation, and by the way, the new documentation is horrible. That is my opinion.

                            As for the professional on this message board; you are the greatest. If it were not for you, many newcomers would just give-up at the very beginning. You do way more than it could ever be expected, and for that, I thank you very much. I have never come across a community of people such as you.

                            Once again: Thanks, thanks, thanks, and thanks again.

                            Comment

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