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Thread: [Answers] Gadget

  1. #1
    Lianja MVP
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    Dec 2012
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    Croatia, Zagreb
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    [Answers] Gadget

    Q:
    Which delegate of the Custom section should I put the AddObject() method?
    A:
    There is no delegate involved in creating a custom gadget. Hover the mouse over the gadget header and click the keyboard icon. You will then be in the script editor for that custom gadget. That is where you create your custom gadget UI.



    All topics in [Answers] alphabetically: http://www.lianja.com/community/show...ll=1#post12352
    Last edited by josipradnik; 2016-04-07 at 03:10.

  2. #2
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    Q:
    in a standard section, I've iserted a simple VFP Gadget, with 2 label and 2 textbox.
    When I load the page, the gadget is correctly populated.
    When I skip records of section, how I can refresh the gadget object?
    A:
    A custom gadget should have a refresh method which is called when required.
    It's a method in the gadget object.
    Declare public variables and assign the objects. These public variables should be in a namespace if you edited the custom gadget through the UI.
    a page with 2 section:


    in the seconds section I've inserted a VFP Gadget:
    on the "Custom filename": gadget2.prg

    Code:
    //
    // Lianja custom recital gadget "gadget2"
    //
    namespace martinelli_articoli 
            public des_web, testo_web
           
    define class gadget2 as gadget
            proc init()
                    // place your section "init" code here
            endproc
    
            proc add()
                    // place your section "add" code here
            endproc
    
            proc delete()
                    // place your "delete" code here
            endproc
    
            proc first()
                    // place your goto "top" here
            endproc
    
            proc previous()
                    // place your move "previous" code here
            endproc
    
            proc next()
                    // place your move "next" code here
            endproc
    
            proc last()
                    // place your goto "bottom" code here
            endproc
    
            proc watch()
                    // place your "watch" code here
            endproc
    
            proc refresh()
                    // place your "refresh" code here
                    des_web.text = Q_RemoveHTMLTag(ARTICOLI.DES_WEB)
                    testo_web.text = Q_RemoveHTMLTag(ARTICOLI.TESTO_WEB)           
            endproc
    enddefine
    
    proc gadget2 
            gadget2 = createobject("gadget2")
    
            gadget2.addobject("lbl_desweb", "Label")
            lbl_desweb.caption = "Descrizione WEB"
    
            gadget2.addobject("des_web", "Textbox") 
            des_web.text = Q_RemoveHTMLTag(ARTICOLI.DES_WEB)
           
            gadget2.addobject("lbl_testoweb", "Label")
            lbl_testoweb.caption = "Testo WEB"
            gadget2.addobject("testo_web", "Textbox") 
            testo_web.text = Q_RemoveHTMLTag(ARTICOLI.TESTO_WEB)
                     
            // 
    return gadget2


    The grid gadget example
    grid Gadget Example Lianja - https://youtu.be/a0v3GYwO3h8



    Q:
    Actionbar. How to hide it in the grid gadget?


    A:
    <nameofgrid>.actionbar =.f.



    All topics in [Answers] alphabetically: http://www.lianja.com/community/show...p?2717-Answers




  3. #3
    Lianja MVP
    Join Date
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    Location
    Croatia, Zagreb
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    Q:
    I've a Form Section, with a Grid Gadget.
    If I try to set:
    Code:
    oGridGadget = lianja.get("mypage.section.gridgadget")
     oGridGadget.clear()
     oGridGadget.setattr("controlSource", "filterricerca")
    I get the error:
    gio ott 6 10:10:16 2016
    **** Lianja error ****
    USE "filterricerca" IN 0
    ^
    File 'filterricerca.dbf' does not exist
    where filterricerca is a cursor:
    Code:
    create cursor filterricerca (&cursorField)
    select filterricerca
    append blank
    Is possible to use a cursor as a datasource of a Grid Gadget?

    A:
    No, it expects a table name.

    A2:
    I believe you can also use temp tables (at least that how I understand them) instead of a cursor.
    If you select into a table that has a name that starts with an underscore, it is not part of the database.
    select * from a into _temp1.
    You can create a temporary table that is not in the database.
    I know of two ways.
    1. Create table c:\tempfabio free(Firstname Char(10), Id int)
    By using the word free, it keeps it standalone.
    2. use a table that starts with an underscore.
    Select * from masterfabio into table _tempfabio




    All topics in [Answers] alphabetically: http://www.lianja.com/community/show...ll=1#post12352

    These answers are also systematized on the site "Lianja developer": https://lianjadeveloper.wordpress.com/category/gadget/

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