[Solved] _GUICtrlListView_SetItemParam: doesn't seem to work

[Simpel]

Hi,

I make a listview. Later I want to re-arrange the listviewitems and change at some point the backcolor. Therefor I want to set them a new controlid. This is the code to show, what is not working:

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#include <GUIConstantsEx.au3>
#include <GuiListView.au3>

Example()

Func Example()
    GUICreate("listview items", 222, 190)

    Local $idListview = GUICtrlCreateListView("col1|col2|col3", 10, 10, 202, 170)

    Local $iSuccess
    For $i = 0 To 4
        $iSuccess = GUICtrlCreateListViewItem($i & "|" & $i & "|" & $i, $idListview)
        ConsoleWrite("Create: " & $iSuccess & @CRLF)
        If $i > 1 Then
            $iSuccess = GUICtrlSetBkColor($iSuccess, 0x00AA00)
            ConsoleWrite("Success: " & $iSuccess & @CRLF)
        EndIf
    Next
    GUISetState(@SW_SHOW)
    Sleep(2000)

    ; later a lot of code for re-arrange listviewitems w/ drag&drop

    ; #cs ; comment out this to see, that it works w/o setting a new controlid
    Local $iParam
    For $i = 0 To _GUICtrlListView_GetItemCount($idListview) - 1
        $iParam = 1000 + Int($i)
        $iSuccess = _GUICtrlListView_SetItemParam($idListview, $i, $iParam)

        If $iSuccess = False Then
            ConsoleWrite("$i: " & $i & @CRLF)
            ExitLoop
        EndIf
    Next
    ; #ce ; comment out until here

    Local $iControlID
    For $i = 0 To _GUICtrlListView_GetItemCount($idListview) - 1
        $iControlID = _GUICtrlListView_GetItemParam($idListview, $i)
        ConsoleWrite("ControlID: " & $iControlID & @CRLF)
        If $i > 2 Then
            $iSuccess = GUICtrlSetBkColor($iControlID, 0xAA0000)
            ConsoleWrite("Success: " & $iSuccess & @CRLF)
        EndIf
    Next

    ; Loop until the user exits.
    While 1
        Switch GUIGetMsg()
            Case $GUI_EVENT_CLOSE
                ExitLoop
        EndSwitch
    WEnd
EndFunc   ;==>Example

Any ideas? Regards, Simpel

Edited April 29, 2019 by Simpel
[Solved]

[Simpel]

Maybe I found a hint? This is a little snippet to show some problem:

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Global $hGUI = GUICreate("listview items", 220, 200)
Global $g_hListView = GUICtrlCreateListView("col1|col2|col3", 10, 10, 200, 180)
For $i = 1 To 6
    GUICtrlCreateListViewItem("item" & $i & "|col" & $i & "2|col" & $i & "3", $g_hListView)
Next
_GetIDs()
GUISetState(@SW_SHOW)

While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            ExitLoop
        Case $GUI_EVENT_PRIMARYDOWN
            _Arrange_List()
    EndSwitch
WEnd

Func _Arrange_List()
    Local $Selected = _GUICtrlListView_GetSelectionMark($g_hListView)
    If $Selected = -1 Then Return
    While _IsPressed(1)
    WEnd
    Local $Dropped = _GUICtrlListView_GetHotItem($g_hListView)
    If $Dropped > -1 Then
        _GUICtrlListView_BeginUpdate($g_hListView)
        If $Selected < $Dropped Then
            _GUICtrlListView_InsertItem($g_hListView, "", $Dropped + 1)
            _GUICtrlListView_SetItemText($g_hListView, $Dropped +1, _GUICtrlListView_GetItemTextString($g_hListView, $Selected), -1)
            _GUICtrlListView_DeleteItem($g_hListView, $Selected)
        ElseIf $Selected > $Dropped Then
            _GUICtrlListView_InsertItem($g_hListView, "", $Dropped)
            _GUICtrlListView_SetItemText($g_hListView, $Dropped, _GUICtrlListView_GetItemTextString($g_hListView, $Selected + 1), -1)
            _GUICtrlListView_DeleteItem($g_hListView, $Selected + 1)
        EndIf
        _GUICtrlListView_SetItemSelected($g_hListView, $Dropped)
        _GUICtrlListView_SetSelectionMark($g_hListView, $Dropped)
        _GUICtrlListView_EndUpdate($g_hListView)
        _GetIDs()
    EndIf
EndFunc

Func _GetIDs()
    Local $iControlID
    For $i = 0 To _GUICtrlListView_GetItemCount($g_hListView) - 1
        $iControlID = _GUICtrlListView_GetItemParam($g_hListView, $i)
        ConsoleWrite("ControlID: " & $iControlID & @CRLF)
    Next
    ConsoleWrite(@CRLF)
EndFunc

The controlIDs written at console will be 4 to 9 at start. When I drag one row then this row will have the return value 0. All others keep their value. What is happening there?

Simpel

[Simpel]

Ok,

it's written on the help file, but not the proper place. If you look at _GUICtrlListView_GetItemParam() you will find in the example a comment:

; Warning do not use SetItemParam on items created with GUICtrlCreateListViewItem

I would expect that at _GUICtrlListView_SetItemParam() inside the remarks. It could look like this:

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#include <GUIConstantsEx.au3>
#include <GuiListView.au3>
#include <Misc.au3>
Local $aArray_Base[5][2] = [["0 - 0", "0 - 1"], ["1 - 0", "1 - 1"], ["2 - 0", "2 - 1"], ["3 - 0", "3 - 1"], ["4 - 0", "4 - 1"]]
Global $hGUI = GUICreate("listview items", 220, 200)
Global $g_hListView = GUICtrlCreateListView("", 10, 10, 200, 180)
_GUICtrlListView_AddColumn($g_hListView, "Col 1", 100)
_GUICtrlListView_AddColumn($g_hListView, "Col 2", 100)
_GUICtrlListView_AddArray($g_hListView, $aArray_Base)
_ChangeColor()
GUISetState(@SW_SHOW)

While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            ExitLoop
        Case $GUI_EVENT_PRIMARYDOWN
            _Arrange_List()
    EndSwitch
WEnd

Func _Arrange_List()
    Local $Selected = _GUICtrlListView_GetSelectionMark($g_hListView)
    If $Selected = -1 Then Return
    While _IsPressed(1)
    WEnd
    Local $Dropped = _GUICtrlListView_GetHotItem($g_hListView)
    If $Dropped > -1 Then
        _GUICtrlListView_BeginUpdate($g_hListView)
        If $Selected < $Dropped Then
            _GUICtrlListView_InsertItem($g_hListView, "", $Dropped + 1)
            _GUICtrlListView_SetItemText($g_hListView, $Dropped +1, _GUICtrlListView_GetItemTextString($g_hListView, $Selected), -1)
            _GUICtrlListView_DeleteItem($g_hListView, $Selected)
        ElseIf $Selected > $Dropped Then
            _GUICtrlListView_InsertItem($g_hListView, "", $Dropped)
            _GUICtrlListView_SetItemText($g_hListView, $Dropped, _GUICtrlListView_GetItemTextString($g_hListView, $Selected + 1), -1)
            _GUICtrlListView_DeleteItem($g_hListView, $Selected + 1)
        EndIf
        _GUICtrlListView_SetItemSelected($g_hListView, $Dropped)
        _GUICtrlListView_SetSelectionMark($g_hListView, $Dropped)
        _GUICtrlListView_EndUpdate($g_hListView)
        _ChangeColor()
    EndIf
EndFunc

Func _ChangeColor()
    Local $iParam, $iSuccess
    For $i = 0 To _GUICtrlListView_GetItemCount($g_hListView) - 1
        $iParam = 1000 + Int($i)
        $iSuccess = _GUICtrlListView_SetItemParam($g_hListView, $i, $iParam)

        If $iSuccess = False Then
            ConsoleWrite("Error Set: " & $i & @CRLF)
            ExitLoop
        EndIf
    Next
    Local $iControlID
    For $i = 0 To _GUICtrlListView_GetItemCount($g_hListView) - 1
        $iControlID = _GUICtrlListView_GetItemParam($g_hListView, $i)
        ConsoleWrite("ControlID: " & $iControlID & @CRLF)
    Next
EndFunc

But at least that is not solving my problem here: https://www.autoitscript.com/forum/topic/191829-listview-lower-part-should-be-colored/

Simpel