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GreenCan

single-item or multiple-item selection in TreeView

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#1 ·  Posted (edited)

You can disregard this one, I found some information in other posts.

GreenCan

Hi,

I have a question about single-item or multiple-item selection in a TreeView. I couldn't find a way to avoid the multiple selection.

I want to create a configuration page with a number of TreeViews and with variable amounts of data rows per selection.

To illustrate what I mean, see the attached example.

Let's assume you have a variable amount of grouped items to be selected Some of the TreeViews allow miltiple selections where other only can accept one single choice. For simplicity, the example has only 1 amount of items (20)

Col 1: is a simple treeview with $TVS_CHECKBOXES. Perfect works fine for multi-selects.

Col 2: is what I want but I can't achieve. Same TreeView but only one check-box should be selected. (the example is the same as col 1.

Col 3: the radio button alternative, not as flexible because of the missing scroll bar. Where are items 10+ in the example?

Col 4: This works, a simple combo box with the default item selected. Only one item can be seleceted at a time. What I miss here is a standard way to present data to the user.

So the question is, Can I make row 2 but with the limitation that only one check-box can be selected?

example.au3

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <TreeViewConstants.au3>
#include <StaticConstants.au3>

Opt('MustDeclareVars', 1)

Local $Elements = 20

Example($Elements)

Func Example($_Elements)
    Local $treeview, $OKbutton, $cancelbutton, $msg

    DIM $Columns[$_Elements][6] 
    
    GUICreate("Test GUI with treeview", 800, 215)

    GUICtrlCreateLabel("multiple-item select", 10, 10, 110,18) 

    Local $TreeView = GuiCtrlCreateTreeView(10, 30, 110, 120, $TVS_CHECKBOXES)
    For $i = 0 To UBound($Columns)-1
        $Columns[$i][1] = GuiCtrlCreateTreeViewItem("Column " & $i + 1, $TreeView)
        If $i + 1 = 5 or $i + 1 = 6 Then
            GuiCtrlSetState(-1, $GUI_CHECKED) ; check if column match with list     
        EndIf
    Next
    
    GUICtrlCreateLabel("single-item select???", 130, 10, 110,18) 
    Local $TreeView = GuiCtrlCreateTreeView(130, 30, 110, 120, $TVS_CHECKBOXES)
    For $i = 0 To UBound($Columns)-1
        $Columns[$i][2] = GuiCtrlCreateTreeViewItem("Column " & $i + 1, $TreeView)
        If $i +1 = 2 Then
            GuiCtrlSetState(-1, $GUI_CHECKED) ; Checked
        EndIf
    Next    

    GUICtrlCreateLabel("Radio button", 260, 10, 110,18) 
    For $i = 0 To UBound($Columns)-1
        $Columns[$i][3] = GUICtrlCreateRadio("Column " & $i + 1, 260, 30 + ($i * 20), 110, 20)
        If $i + 1 = 12 Then
            GuiCtrlSetState(-1, $GUI_CHECKED) ; Default selection
        EndIf
    Next    

    GUICtrlCreateLabel("Combo", 370, 10, 110,18) 
    Local $Items = "None|", $DefaultItem = ""
    For $i = 0 To UBound($Columns)-1
        $items = $items & "Column " & $i + 1 & "|"
        If $i + 1 = 10 Then
            $DefaultItem = "Column " & $i + 1 ; Default selection   
        EndIf
    Next        
    GUICtrlCreateCombo("", 370, 30, 110, 60) ; create first item
    GUICtrlSetData(-1, $items, $DefaultItem) ; add other item snd set a new default
    
    $OKbutton = GUICtrlCreateButton("&OK", 35, 185, 70, 20)
    $cancelbutton = GUICtrlCreateButton("&Cancel", 125, 185, 70, 20)
    GUISetState()
    While 1
        $msg = GUIGetMsg()
        Select
            Case $msg = $cancelbutton Or $msg = $GUI_EVENT_CLOSE
                ExitLoop

            Case $msg = $OKbutton   ; Toggle the bold painting

        EndSelect
    WEnd

    GUIDelete()
EndFunc   ;==>Example
Edited by GreenCan

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