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Looking to mimic a "Mover" control

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  • Davidk
    Re: Looking to mimic a "Mover" control

    Not sure about the overhead on this one... lots of calls being made up to the server... then again... it's quite fast.

    Need to make a change to grab the correct row, just in case this is used in a multi-row grid.

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  • WindForce
    Re: Looking to mimic a "Mover" control

    Many thanks David. I am just finishing a completely different approach i had to take to tackle this problem (mainly built a grid where the user selects each time the list of items) but i will definitely use your idea when building the final product, although i may finish building more or less the same functionality, but with 2 grids instead of 2 dropdowns...

    Leave a comment:

  • Davidk
    Re: Looking to mimic a "Mover" control

    Not sure if you're still looking for this. This works ok. The code below moves items from Dropdown 1 to Dropdown 2. You'll have to duplicate the code or make some changes to implement for the reverse. I'm using MySQL here, and using only 1 table.

    The idea is that the table has an Select ID, a Select Name (displayed in the dropdown) and a boolean field to turn on and off when an item is selected. Items that show in dropdown box 1 have the switch set to 0 and items that display in dropdown box 2 have the switch set to 1. Each time the code is run, the selected item(s) switch is updated and the boxes are re-populated. The code allows for multiple selection and so it can be called from a click event, a double-click event (both of which will move just 1 item) or called from a button which would process all selected items.

    The code is an Ajax Callback and so goes into the Grid's Xbasic Functions section. Lots of error checking needed too. This code looks after the current Row the Grid is in... although a multi-row Grid doesn't really make sense for this.

    Have a look at Video D41 for a lot of this code... so happy it's all out there to get and use.

    function SelectUpdate as c (e as p)
    'This function will handle the Ajax callback. 
    'It must return a string of Javscript commands that will be executed in the Browser.	
    'The 'e' object contains all of the data that is submitted in the Ajax callback.
    'In addition, the 'e' object contains:
    'e._currentRowDataOld - (only if the grid is editable) - original value in the current row before field was edited. 
    '	examples:  e._currentRowDataOld.lastname, e._currentRowDataOld.firstname
    'e._currentRowDataNew as p - current field values in the current row.
    '	examples:	e._currentRowDataNew.lastname, e._currentRowDataNew.firstname
    'e._currentRowKeys - an array containing primary key field values for the current row
    '	example: If the primary key for the table that the grid is based on is 'Lastname' and 'Firstname', 
    '	e._currentRowKeys[1] will contain the value for 'Lastname' and e._currentRowKeys[2] will contain the value for 'Firstname'
    'e._gridCurrentFilter - current filter expression if the Grid has been filtered
    'e._gridCurrentOrder - current sort expression
    'e._gridCurentArgumentsXML - XML value of the sql::arguments object for any parameters in the e._gridCurrentFilter property.
    'Note: If the Grid is based on a SQL statement, to get the current SQL statement for the Grid (combining the SQL statement that the Grid is based on 
    'with the current Grid filter and order), you can use this Xbasic:
    'gridSQL = a5_sql_addfilterorder(e.tmpl.cs.sql,e._gridCurrentFilter,"",e._gridCurrentOrder)
    'e._isLinkedGrid - .t. if the Grid is a linked Grid (i.e. it has a parent Grid)
    'e._linkValues = linking value. Contains a CRLF delimited list of linking values in this format: fieldname|type|linkingValue
    'If the Grid checkbox column is turned on, the 'e' object will contain this properties
    'e.checkboxFilter - a filter command to select all of the checked rows
    'e.checkboxFilterArgumentXML - (for SQL Grids only) if the Grid is based on SQL tables, the e.checkboxFilter property will use arguments (e.g. customerID = :pkValue1)
    '							 - this property contains the XML version of the arguments
    'e.checkboxFilterArgumentsEncoded  - (for SQL Grids only) contains an encoded version of the e.checkboxFilterArgumentXML property that can be used in the .gridFilterSet() method.
    'In addition, the 'e' object contains:
    'e.tmpl - the Component definition
    'e.session - session variables
    'e.__si - state information that is stored in a hidden field in the component. 
    'e.rtc - holds runtime calculations that are performed when component is executing.
    'If you set certain properties in 'e._set' then the appropriate Javascript code will be automatically generated in the Ajax response
    'e._set.lastname.value = "Smith"    --- will set the value of the 'Lastnme' field in the current row to "Smith"
    ' = "color: red;" --- will set the style attribute for the 'Lastname' field in the current row. 
    'e._set.lastname.className = "NewClassName" --- will set the ClassName attribute of the 'Lastname' field in the current row.
    ' = "red" --- will set the style.color attribute to 'Red' (preserving all other style attributes that had been set)
    ' = "20pt" -- will set the style.fontSize attribute to '20pt' (preserving all other style attributes that had been set) (Important: the name of the style attribute is case-sensitive)
    'To set multiple values in a CheckBox or multi-select Dropdownbox control, set the .value property to a dot
    'variable that contains an array of values. The array must be called 'value'
    'Dim a as p   'a is an arbitrarily named dot variable
    'dim a.value[3] as c 'dim an array called 'value'
    'a.value[1] = "alpha"
    'a.value[2] = "beta"
    'a.value[3] = "gamma"
    'e._set.greekletters.value = a 
    'This will select 3 options ('alpha', 'beta' and 'gamma') in the checkbox group for the 'greekletters' control.
    'Assume your callback submitted data from the 'Grid' part, row 3:
    'e._set.lastname.value = "Smith" gets converted to this Javascript code: '{grid.object}.setValue('G','LASTNAME',3,'' + 'Smith',true);' and this code is automatically added to the Ajax response.
    'In addition to 'e._set', you can set properties of the 'e._setElement', 'e._setGridElement' and 'e._setRow<rowNumber>' objects.
    'e._setRow3.lastname.value = "Smith"
    'e._setRow_1.firstname.value = "John" --- sets the value in the first New Record row
    'e._setElement.DIV1.value = "Some text" --- sets the innerHTML of DIV with the id of 'DIV1'
    ' = "Red" ---- sets style properties of a SPAN with id of '{grid.componentname}.SPN2'
    'example code:
    'Return a Javascript command
    'Get the data in the dropdown box
    Dim arraySize as n
    Dim currRow as n
    arraySel = e._currentRowDataNew.OrdName
    arraySize = arraySel.Size()
    currRow = e._currentRow
    dim cn as sql::connection
    dim sql as c
    dim args as sql::arguments
    'Update the selected items.  Setting the field to 1 moves the item over the 2nd dropdown box
    FOR x = 1 TO arraySize
    	sql = "UPDATE tblSelect_1 SET ItemSelected = 1 Where SelectId = :argSelId"
    	flag = cn.execute(sql,args)
    Next x
    'Now go get what's left in the table that belongs in the 1st dropdown box
    sql = "SELECT SelectID, ItemName FROM tblSelect_1 WHERE ItemSelected=0"
    flag = cn.execute(sql)
    dim rs as sql::resultset
    rs = cn.resultset
    flag = rs.nextRow()
    'If there are any rows left for the 1st dropdown box, set it's initial value as the first item
    if flag then
    	init1 ="SelectId")
    	init1 = ""
    end if		
    'We are now positioned on the first row
    'Construct the data needed to re-populate the 1st dropdown
    dim txt as c
    while flag 
        txt = txt + "['" +"ItemName") + "', '" +"SelectId") + "'],"
        'when there are no more records in the ResultSet, executing .nextRow()
        'will return .f., so flag will be .fl and the while loop will end
        flag = rs.nextRow()
    end while
    txt = left(txt,len(txt)-1)
    txt = "[" + txt + "]"
    'Go get the items for the 2nd dropdown
    sql = "SELECT SelectID, ItemName FROM tblSelect_1 WHERE ItemSelected=1"
    flag = cn.execute(sql)
    rs = cn.resultset
    flag = rs.nextRow()
    if flag then
    	init2 ="SelectId")
    	init2 = ""
    end if		
    'We are now positioned on the first row
    'Construct the data needed to re-populate the 2nd dropdown
    dim txt2 as c
    while flag 
        txt2 = txt2 + "['" +"ItemName") + "', '" +"SelectId") + "'],"
        'when there are no more records in the ResultSet, executing .nextRow()
        'will return .f., so flag will be .fl and the while loop will end
        flag = rs.nextRow()
    end while
    txt2 = left(txt2,len(txt2)-1)
    txt2 = "[" + txt2 + "]"
    'GRID1.V.R1.ORDNAME - this is the name of my rendered dropdown 
    dim eleId as c = "{Grid.componentname}.V.R" + currRow + ".ORDNAME"
    dim eleId2 as c = "{Grid.componentname}.V.R" + currRow + ".ORDNAME2"
    'Execute 2 A5.form.populateSelect statements
    js = "A5.form.populateSelect('" + eleId + "','" + init1 + "'," + txt + ",true);A5.form.populateSelect('" + eleId2 + "','" + init2 + "'," + txt2 + ",true);"
    SelectUpdate = js
    end function
    Last edited by Davidk; 04-02-2012, 04:42 PM. Reason: Changed code to look after current row

    Leave a comment:

  • Keith Hubert
    Re: Looking to mimic a &quot;Mover&quot; control

    Hi Jamie,

    The Xdialog I was referring you to is for the desktop and is in a sub folder of the V11 Program files. This would of course have to be coded differently for web use.

    It was just to give you a thought as to how you might implement your idea, as there are so many ways to do what you want.
    Last edited by Keith Hubert; 04-02-2012, 12:42 PM.

    Leave a comment:

  • WindForce
    Re: Looking to mimic a &quot;Mover&quot; control

    Thanks Keith. Is it part of my subscription? Where do i find it?

    Leave a comment:

  • Keith Hubert
    Re: Looking to mimic a &quot;Mover&quot; control

    Hi Jamie,

    Have a look at Learning Xdialog, Lesson 8 should give you an idea of what is possible. I think this will be the best way forward.

    Leave a comment:

  • frankbicknell
    Re: Looking to mimic a &quot;Mover&quot; control

    Search the forum there were a couple of discussions about this. I wish I could remember the titles for you to search. Perhaps someone else knows.

    Leave a comment:

  • WindForce
    started a topic Looking to mimic a "Mover" control

    Looking to mimic a "Mover" control

    Is there a way to mimic a mover control in A5? The mover control shows 2 lists, one containing available options, and the other containing selected options, with buttons to move from one to the other (either one by one or all selected in one click).

    In my scenario, i have a certain quantity of passengers that bought a tourism service for a specific date. Depending on the amount of people, the coordinator decides for a quantity of cars. Then, i want that mover to select which people goes to which car.