GUIListViewEx - BugFix Version 6 Apr 24

Melba23 · September 8, 2021

NassauSky,

Good fun getting that to work:

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#include <Array.au3>
#include <GuiMenu.au3>
#Include "GUIListViewEx.au3"

Opt("GUIOnEventMode", 1)

Global Enum $iThis = 1000, $iThat
Global $fRightClick = False, $aHit, $fUDF = False

; Create GUI
$hGUI = GUICreate("ContextMenu NATIVE vs UDF", 640, 510)
GUISetOnEvent($GUI_EVENT_CLOSE, "_Exit")

;--------------------------------------------------LEFT NATIVE SETUP--------------------------------------------------------------------------
$cListView_Left = GUICtrlCreateListView("", 30, 40, 200, 300, BitOR($LVS_DEFAULT, $WS_BORDER))
_GUICtrlListView_AddColumn($cListView_Left, "Column 1", 83)
_GUICtrlListView_AddColumn($cListView_Left, "Column 2", 83)
$iLV_Left_Index = _GUIListViewEx_Init($cListView_Left, "", 0, 0, True)

$ContextMenu = GUICtrlCreateContextMenu($cListView_Left)
GUICtrlCreateMenuItem("Run This", $ContextMenu, 1)
GUICtrlSetOnEvent(-1, "_myRoutine1")
GUICtrlCreateMenuItem("Run That", $ContextMenu, 2)
GUICtrlSetOnEvent(-1, "_myRoutine2")
;-------------------------------------------------RIGHT UDF SETUP------------------------------------------------------------------------------
$hListView_Right = _GUICtrlListView_Create($hGUI, "", 330, 40, 200, 300, BitOR($LVS_DEFAULT, $WS_BORDER))  ;UDF version
_GUICtrlListView_AddColumn($hListView_Right, "Column 1", 83)
_GUICtrlListView_AddColumn($hListView_Right, "Column 2", 83)
$iLV_Right_Index = _GUIListViewEx_Init($hListView_Right, "", 0, 0, True)

_GUIListViewEx_MsgRegister(False)
GUIRegisterMsg($WM_NOTIFY, "_WM_NOTIFY")

GUISetState()

;-------------------------------------------------COMMON ITEM INSERTION-------------------------------------------------------------------------
_GUIListViewEx_InsertSpec($iLV_Left_Index, 0, "Row 1a Manual Wait| Test 1b")
_GUIListViewEx_InsertSpec($iLV_Left_Index, 1, "Row 2a Manual Wait| Test 2b")

_GUIListViewEx_InsertSpec($iLV_Right_Index, 0, "Row 1a Manual Wait| Test 1b")
_GUIListViewEx_InsertSpec($iLV_Right_Index, 1, "Row 2a Manual Wait| Test 2b")

While 1
    Sleep(10)
WEnd

Func _Exit()
    Exit
EndFunc

Func _myRoutine1()
    If $fUDF Then
        MsgBox($MB_SYSTEMMODAL, "RClick", "Running This" & @CRLF & $aHit[0] & "-" & $aHit[1])
        $fUDF = False
    Else
        $aContext =_GUIListViewEx_ContextPos()
        MsgBox($MB_SYSTEMMODAL, "RClick", "Running This" & @CRLF & $aContext[1] & "-" & $aContext[2])
    EndIf

EndFunc

Func _myRoutine2()
    If $fUDF Then
        MsgBox($MB_SYSTEMMODAL, "RClick", "Running That" & @CRLF & $aHit[0] & "-" & $aHit[1])
        $fUDF = False
    Else
        $aContext =_GUIListViewEx_ContextPos()
        MsgBox($MB_SYSTEMMODAL, "RClick", "Running That" & @CRLF & $aContext[1] & "-" & $aContext[2])
    EndIf
EndFunc

Func _LV_Right_RClick() ; Called inside _WM_NOTIFY

   $aHit = _GUICtrlListView_SubItemHitTest($hListView_Right)
    If $aHit[0] <> -1 Then
        $fUDF = True ; Click on UDF ListView
        $hMenu = _GUICtrlMenu_CreatePopup()
        _GUICtrlMenu_AddMenuItem($hMenu, "Run This", $iThis)
        _GUICtrlMenu_AddMenuItem($hMenu, "Run That", $iThat)
        Switch _GUICtrlMenu_TrackPopupMenu($hMenu, $hListView_Right, -1, -1, 1, 1, 2)
            Case $iThis
                _myRoutine1()
            Case $iThat
                _myRoutine2()
        EndSwitch
        _GUICtrlMenu_DestroyMenu($hMenu)
    EndIf

EndFunc

Func _WM_NOTIFY($hWnd, $iMsg, $wParam, $lParam)

    Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $hWndListView, $tInfo

    $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
    $hWndFrom = HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    $iCode = DllStructGetData($tNMHDR, "Code")
    Switch $hWndFrom
        Case $hListView_Right
            Switch $iCode
                Case $NM_RCLICK
                    _LV_Right_RClick()
                    Return 0
            EndSwitch
    EndSwitch

    _GUIListViewEx_WM_NOTIFY_Handler($hWnd, $iMsg, $wParam, $lParam)

EndFunc   ;==>WM_NOTIFY

All good now?

M23

NassauSky · September 8, 2021

@Melba23

When you say 'good fun' did you mean that took you 120 seconds to modify 😕

Sheesh OK it's outside the message handler but you have some other fun stuff going on. I'll have to play with.

Thanks!

Mabus · September 10, 2021

Hello all, sorry for stupid question... I channge color row by GUICtrlSetBkColor and change text cells by _GUICtrlListView_SetItemText all ok! BUT AFTER SORTING or draging ALL CHANGES LOST! WHY???????????? T_T

P.S. Also i need add "open window" event after double click on row... and for work features sort and drag and my event i need rewrite _GUIListViewEx_WM_NOTIFY_Handler just for catch $LVN_ITEMACTIVATE o_O?????

Edited September 10, 2021 by Mabus

Melba23 · September 10, 2021

Mabus,

Welcome to the AutoIt forums.

With regard to the colours, at a guess you are not calling the _EventMonitor function in your idle loop - but as you post no code I cannot be more specific.

As to the "open window" event on a double click, you can use the _SetEditStatus function with $iMode = 9 to define a function to run.

So, post a short example of what you are trying to do (see here how to do it) and I will try and help yo to get it running correctly.

M23

Mabus · September 13, 2021

Ok maybe later i try it... ))) I so stupid and make all himself for now. (all work well) After my power go low i will try use _Ex again... =))))
Anyway thanks for help! ^_^

Edited September 13, 2021 by Mabus

Melba23 · September 13, 2021

[NEW VERSION] - 13 Sep 21

Changed:

- A small change to the $iAdded parameter value of 512 - this used to block ALL drag/drop operations, but now only blocks INTERNAL drag/drop. So to block ALL drag/drop operations with this version you will now need to use an $iAdded value of 64+128+512. This is a script-breaking change if you use this functionality - although the change to your scripts to maintain it is not too taxing!

Fixed:

- A bug in the _Close function when there were multiple ListViews being closed.

New version in the zip in the first post.

M23

jimmy123j · December 29, 2021

So for bother, does ListviewEX support multiple selection !?

'cause I enable the _GUIListViewEx_Init function and all of my listview multiple selection functions are not responsing

such like _GUICtrlListView_GetSelectedIndices and multiple select ...

Edited December 29, 2021 by jimmy123j

Melba23 · December 29, 2021

jimmy123j,

Multiple selections are available within the UDF, unless you get into the more exotic scenarios such as colouring the cells or having single cell selection. As these options require he ListView to be user-drawn rather then run by Windows, the standard selection no longer works - hence the need for functions within the UDF such as _GUIListViewEx_GetLastSelItem.

Please post the code you are using and I will see if there is anything I can do to help.

M23

jimmy123j · December 29, 2021

54 minutes ago, Melba23 said:

jimmy123j,

Multiple selections are available within the UDF, unless you get into the more exotic scenarios such as colouring the cells or having single cell selection. As these options require he ListView to be user-drawn rather then run by Windows, the standard selection no longer works - hence the need for functions within the UDF such as _GUIListViewEx_GetLastSelItem.

Please post the code you are using and I will see if there is anything I can do to help.

M23

Thanks for reply, 'cause PIP i can't upload my script, really sorry

and I remove the color feature, multiple selection is work, but unfortunately I need the cell color item and multiple selection same time

LarsJ's listview color can help my script this time, thanks again

Edited December 29, 2021 by jimmy123j

Melba23 · December 29, 2021

jimmy123j,

No problem.

M23

Champak · March 29, 2022

Hi, I'm trying to incorporate the following listview group function with combobox listviews, but the groups wont show. No errors or anything, the group just doesn't display. I need to be able to hide rows when needed. Is it not compatible? Thanks.

$l = 1
    $m = 4
    $n = 0

    $sID_1 = 1
    $sID_2 = 2
    $sIndex_1 = 0

    For $i = 0 To 4

        _GUICtrlListView_InsertGroup($cLV_1, -1, $sID_1, "")
        _GUICtrlListView_SetGroupInfo ( $cLV_1, $sID_1, "", 0, $LVGS_NOHEADER )

        GUICtrlCreateListViewItem("",$cLV_1)
        _GUICtrlListView_SetItemGroupID($cLV_1, $sIndex_1, $sID_1)


        _GUICtrlListView_InsertGroup($cLV_1, -1, $sID_2, "")
        _GUICtrlListView_SetGroupInfo ( $cLV_1, $sID_2, "", 0, $LVGS_COLLAPSIBLE + $LVGS_COLLAPSED )

        For $sIndex_2 = $l To $m
            GUICtrlCreateListViewItem("",$cLV_1)
            _GUICtrlListView_SetItemGroupID($cLV_1, $sIndex_2, $sID_2)
            $n += 1
        next

        $l += 5
        $m += 5
        $n += 1

        $sID_1 += 2
        $sID_2 += 2
        $sIndex_1 += 5

    Next

Edited March 29, 2022 by Champak

Melba23 · March 29, 2022

Champak,

Sorry, this UDF is not compatible with ListView groups.

M23

Champak · March 30, 2022

Edit

Edited March 30, 2022 by Champak

Champak · March 30, 2022

OK, thanks, hopefully an upgrade for groups is in sights for the future...😉

Second issue, why is this not working?

#Include "GUIListViewEx.au3"
#include <Excel.au3>
#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>

; Create GUI
$hGUI = GUICreate("LVEx Example 1", 940, 510)


Global $aLVArray_1[20][40]
Global $cLV_1 = GUICtrlCreateListView("blah", 10, 30, 980, 260, BitOR($LVS_SINGLESEL, $LVS_SHOWSELALWAYS))
;Global $cLV_1 = _GUICtrlListView_Create($hGUI, "", 10, 40, 900, 300, BitOR($LVS_DEFAULT, $WS_BORDER))  ;UDF version

_GUICtrlListView_SetExtendedListViewStyle($cLV_1, BitOR($LVS_EX_FULLROWSELECT, $LVS_EX_HEADERDRAGDROP, $LVS_EX_GRIDLINES));$LVS_EX_ONECLICKACTIVATE


_GUICtrlListView_AddColumn($cLV_1, "Column 1", 83)
_GUICtrlListView_AddColumn($cLV_1, "Column 2", 83)
;GUICtrlCreateListViewItem("ttt", $cLV_1)

$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, $aLVArray_1, 0, 0, True, 1 + 8 + 32) ; + 16

_GUIListViewEx_InsertSpec($iLVIndex_1, 0, $aLVArray_1);<--------------This is what causes the error


_GUIListViewEx_SetEditStatus($iLVIndex_1, 0)                   ; Default = standard text edit
_GUIListViewEx_SetEditStatus($iLVIndex_1, 1)                   ; Default = standard text edit


_GUIListViewEx_MsgRegister()


GUISetState()

While 1
Sleep(50)
WEnd

Inserting an array is causing the error below. But I believe I'm adding it correctly.

Array variable has incorrect number of subscripts or subscript dimension range exceeded.:
If StringInStr(($aGLVEx_Data[0][13])[$iItem + 1][$iSubItem], ";") Then
If StringInStr(($aGLVEx_Data[0][13]^ ERROR

Thanks.

Champak · March 30, 2022

Also, this doesn't work as expected? To set different combo box content based on the reading of another combo box.

If _GUICtrlListView_GetItemText ( $cLV_1, $sListRow, 6) = "Boys" Then
                            ConsoleWrite("++" & @CRLF)
                            $sCat3Level1 = "A|B|C|D"
                            $sCat3Level2 = "E|F|G|H"
                            $sAtt_Gender = "Alphabet"

                            $iLVIndex_1 = _GUIListViewEx_Init($cLV_1, $aLVArray_1, 1, 0, True);<--Works ONCE when this is removed

                            _GUIListViewEx_SetEditStatus($iLVIndex_1, 7, 2, $sCat3Level1, True) ; 2 = Read-only combo
                            _GUIListViewEx_SetEditStatus($iLVIndex_1, 8, 2, $sCat3Level2, True) ; 2 = Read-only combo
                            _GUIListViewEx_SetEditStatus($iLVIndex_1, 14, 2, $sAtt_Gender, True) ; 2 = Read-only combo
                        Else
                            ConsoleWrite("!!" & @CRLF)
                            $sCat3Level11 = "1|2|3|4"
                            $sCat3Level21 = "5|6|7|8"
                            $sAtt_Gender1 = "Numbers"

                            $iLVIndex_1 = _GUIListViewEx_Init($cLV_1, $aLVArray_1, 1, 0, True);<--wworks ONCE when this is removed

                            _GUIListViewEx_SetEditStatus($iLVIndex_1, 7, 2, $sCat3Level11, True) ; 2 = Read-only combo
                            _GUIListViewEx_SetEditStatus($iLVIndex_1, 8, 2, $sCat3Level21, True) ; 2 = Read-only combo
                            _GUIListViewEx_SetEditStatus($iLVIndex_1, 14, 2, $sAtt_Gender1, True) ; 2 = Read-only combo
                        EndIf

It will work ONCE when when "$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, $aLVArray_1, 1, 0, True)" is removed from the code. What am I doing wrong?

Melba23 · March 31, 2022

Champak,

Sorry for the delay in replying - looking after my grandchildren for the day does not leave a lot of time for anything else!

Quote

hopefully an upgrade for groups is in sights for the future

Not a hope, sorry!

Solution to first problem - look for the ############ delineated sections:

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>

#Include "GUIListViewEx_Test.au3"

#include <Array.au3>

; Create GUI
$hGUI = GUICreate("LVEx Example 1", 940, 510)

; Simulate data array and fill to show it fits
Global $aLVArray_1[20][40]
For $i = 0 to 19
    For $j = 0 To 39
        $aLVArray_1[$i][$j] = $i & " - " & $j
    Next
Next

;_ArrayDisplay($aLVArray_1, "", Default, 8) ; Just to see that you have the array correctly sized

Global $cLV_1 = GUICtrlCreateListView("blah", 10, 30, 920, 260, BitOR($LVS_SINGLESEL, $LVS_SHOWSELALWAYS))

_GUICtrlListView_SetExtendedListViewStyle($cLV_1, BitOR($LVS_EX_FULLROWSELECT, $LVS_EX_HEADERDRAGDROP, $LVS_EX_GRIDLINES));$LVS_EX_ONECLICKACTIVATE

; Solution 1 to your problem ####################################################################

; Add columns to match the size of the data array you want to add - you already have 1 so need to add 39
For $i = 0 To 38
    _GUICtrlListView_AddColumn($cLV_1, "Col " & $i, 30)
Next

; ###############################################################################################

$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, "", 0, 0, True, 1 + 8 + 32) ; + 16

;_GUIListViewEx_SetEditStatus($iLVIndex_1, 0)                   ; Default = standard text edit
;_GUIListViewEx_SetEditStatus($iLVIndex_1, 1)                   ; Default = standard text edit

; Insert the data
$aRet = _GUIListViewEx_InsertSpec($iLVIndex_1, 0, $aLVArray_1)

; Solution 2 to your problem ####################################################################

; You initiated to UDF to have colour, so you need to tell it what colours to use (all default in this case)
Global $aLVCol_1[20][40]
$iRet = _GUIListViewEx_LoadColour($iLVIndex_1, $aLVCol_1)

; ###############################################################################################

_GUIListViewEx_MsgRegister()

GUISetState()

While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch
WEnd

You were getting lots of error returns from the various UDF functions, all explained in the function headers, which helped me to see what was going wrong. Always worth checking these values when problems occur.

And now to the second problem:

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>

#Include "GUIListViewEx_Test.au3"

#include <Array.au3>

; Create GUI
$hGUI = GUICreate("LVEx Example 1", 940, 510)

; Simulate data array and fill to show it fits
Global $aLVArray_1[20][40]
For $i = 0 to 19
    For $j = 0 To 39
        $aLVArray_1[$i][$j] = $i & " - " & $j
    Next
Next

;_ArrayDisplay($aLVArray_1, "", Default, 8) ; Just to see that you have the array correctly sized

Global $cLV_1 = GUICtrlCreateListView("blah", 10, 30, 920, 260, BitOR($LVS_SINGLESEL, $LVS_SHOWSELALWAYS))

_GUICtrlListView_SetExtendedListViewStyle($cLV_1, BitOR($LVS_EX_FULLROWSELECT, $LVS_EX_HEADERDRAGDROP, $LVS_EX_GRIDLINES));$LVS_EX_ONECLICKACTIVATE

; Solution 1 to your problem ####################################################################

; Add columns to match the size of the data array you want to add - you already have 1 so need to add 39
For $i = 0 To 38
    _GUICtrlListView_AddColumn($cLV_1, "Col " & $i + 1, 30)
Next

$cBoys = GUICtrlCreateButton("Boys", 10, 300, 80, 30)
$cGirls = GUICtrlCreateButton("Girls", 120, 300, 80, 30)

; ###############################################################################################

$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, "", 0, 0, True, 1 + 8 + 32) ; + 16

_GUIListViewEx_SetEditStatus($iLVIndex_1, 0)                   ; Default = standard text edit
_GUIListViewEx_SetEditStatus($iLVIndex_1, 1)                   ; Default = standard text edit

; Insert the data
$aRet = _GUIListViewEx_InsertSpec($iLVIndex_1, 0, $aLVArray_1)

; Solution 2 to your problem ####################################################################

; You initiated to UDF to have colour, so you need to tell it what colours to use (all default in this case)
Global $aLVCol_1[20][40]
$iRet = _GUIListViewEx_LoadColour($iLVIndex_1, $aLVCol_1)

; ###############################################################################################

_GUIListViewEx_MsgRegister()

GUISetState()

; Set specific values for second test
_GUIListViewEx_ChangeItem($iLVIndex_1, 5, 6, "Boys")
_GUIListViewEx_ChangeItem($iLVIndex_1, 7, 6, "Girls")


While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            Exit
        Case $cBoys
            _Boys(5)

        Case $cGirls
            _Boys(7)
    EndSwitch

    _GUIListViewEx_EventMonitor()

WEnd

Func _Boys($iRow = 5)

    If _GUICtrlListView_GetItemText($cLV_1, $iRow, 6) = "Boys" Then
        ConsoleWrite("++" & @CRLF)
        $sCat3Level1 = "A|B|C|D"
        $sCat3Level2 = "E|F|G|H"
        $sAtt_Gender = "Alphabet"
        
        ; Mode: 2 = combo
        ; Param2: 1 = read-only & 2 = auto dropdown

        _GUIListViewEx_SetEditStatus($iLVIndex_1, 7, 2, $sCat3Level1, 1 + 2)
        _GUIListViewEx_SetEditStatus($iLVIndex_1, 8, 2, $sCat3Level2, 1 + 2)
        _GUIListViewEx_SetEditStatus($iLVIndex_1, 14, 2, $sAtt_Gender, 1 + 2)
    Else
        ConsoleWrite("!!" & @CRLF)
        $sCat3Level11 = "1|2|3|4"
        $sCat3Level21 = "5|6|7|8"
        $sAtt_Gender1 = "Numbers"

        _GUIListViewEx_SetEditStatus($iLVIndex_1, 7, 2, $sCat3Level11, 1 + 2)
        _GUIListViewEx_SetEditStatus($iLVIndex_1, 8, 2, $sCat3Level21, 1 + 2)
        _GUIListViewEx_SetEditStatus($iLVIndex_1, 14, 2, $sAtt_Gender1, 1 + 2)
    EndIf

EndFunc

That works perfectly for me. It does help if you use the correct syntax for the function calls:

- Mode 2 simply means combo - you need to set the type of combo in Param2 - as shown.

- So where did the "True" you were using in Param2 come from?

M23

Edited March 31, 2022 by Melba23
Added comments for second problem

Champak · April 2, 2022

First issue: It is working ok now. Have another issue with it that I'm dealing with and trying to figure out, but it's ok for now. It's crazy, I got to say, this is a great UDF, but the hardest I've worked with.

Second issue: I don't understand, the "True" parameter came from your example6 included in your download. And as I see it, "True" would represent "1" so there is no issue using it. And it is actually working for me elsewhere in this script. Either way, it is working great now.

Thanks for the help.

Melba23 · April 2, 2022

Champak,

Quote

I got to say, this is a great UDF, but the hardest I've worked with.

And by far the hardest I have ever written - which is why new feature requests are very unlikely to be developed!

M23

Edit: I remember where the "True" comes from in that example. There used to be only 2 options for that parameter (normal or read-only) but I added another option to auto-drop the combo. So now you need to use 0/1 [+ 2] - as explained in the function header. I will amend the example for the next release.

Edited April 2, 2022 by Melba23

Champak · April 5, 2022

I'm going insane here. Past 2 days been fiddling around trying to accomplish my last issue (I think it's my last) and can't make any headway. How do I load a new array into the listview from a function after one was originally loaded on the app launch? I keep getting array dimension exceeded...same amount of columns.

I tried deleting the control and recreating it (exactly how it was created the first time). I tried deleting the listview contents and rebuilding. I tried simply inserting a new array. I tried zeroing out all the arrays and inserting a new one. I tried things I know shouldn't work but throwing anything against the wall. I just can't figure this thing.

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>

#Include "GUIListViewEx.au3"

#include <Array.au3>

; Create GUI
$hGUI = GUICreate("LVEx Example 1", 940, 510)

; Simulate data array and fill to show it fits
Global $aLVArray_1[20][40]
For $i = 0 to 19
    For $j = 0 To 39
        $aLVArray_1[$i][$j] = $i & " - " & $j
    Next
Next

;_ArrayDisplay($aLVArray_1, "", Default, 8) ; Just to see that you have the array correctly sized

Global $cLV_1 = GUICtrlCreateListView("blah", 10, 30, 920, 260, BitOR($LVS_SINGLESEL, $LVS_SHOWSELALWAYS))

_GUICtrlListView_SetExtendedListViewStyle($cLV_1, BitOR($LVS_EX_FULLROWSELECT, $LVS_EX_HEADERDRAGDROP, $LVS_EX_GRIDLINES));$LVS_EX_ONECLICKACTIVATE

; Solution 1 to your problem ####################################################################

; Add columns to match the size of the data array you want to add - you already have 1 so need to add 39
For $i = 0 To 38
    _GUICtrlListView_AddColumn($cLV_1, "Col " & $i, 30)
Next

; ###############################################################################################

$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, "", 0, 0, True, 1 + 8 + 32) ; + 16

;_GUIListViewEx_SetEditStatus($iLVIndex_1, 0)                   ; Default = standard text edit
;_GUIListViewEx_SetEditStatus($iLVIndex_1, 1)                   ; Default = standard text edit

; Insert the data
$aRet = _GUIListViewEx_InsertSpec($iLVIndex_1, 0, $aLVArray_1)

; Solution 2 to your problem ####################################################################

; You initiated to UDF to have colour, so you need to tell it what colours to use (all default in this case)
Global $aLVCol_1[20][40]
$iRet = _GUIListViewEx_LoadColour($iLVIndex_1, $aLVCol_1)

; ###############################################################################################

_GUIListViewEx_MsgRegister()

GUISetState()
Sleep(5000)


Global $aBVArray_1[90][40]
For $i = 0 to 19
    For $j = 0 To 39
        $aBVArray_1[$i][$j] = $i & " a- " & $j
    Next
Next

$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, "", 0, 0, True, 1 + 8 + 32) ; + 16

; Insert the data
$aRet = _GUIListViewEx_InsertSpec($iLVIndex_1, 0, $aBVArray_1)

; Solution 2 to your problem ####################################################################

; You initiated to UDF to have colour, so you need to tell it what colours to use (all default in this case)
Global $aLVCol_1[90][40]
$iRet = _GUIListViewEx_LoadColour($iLVIndex_1, $aLVCol_1)

; ###############################################################################################

_GUIListViewEx_MsgRegister()


While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch
WEnd

Here's a basic example of what I've tried, once I scroll down to the bottom...as with the other versions I've tried...is when it errors out.

Melba23 · April 5, 2022

Champak,

You have tried to do something that to my knowledge has never been done before - and of course it fails! But I know why.

To correctly empty and then reload the ListView you need to follow the instructions in the "Guide" that is part of the download (you did read it?):

Quote

If you wish to reload the ListView with new data, you will need to clear the current content using _GUICtrlListView_DeleteAllItems, close it within the UDF using _GUIListViewEx_Close, reload the ListView with the new data and then reinitialise it using _GUIListViewEx_Init. Otherwise the UDF will become confused about the current content and errors will certainly occur.

But you have colour enabled - and If the ListView has colour enabled, it usually loads the colour before the WM_NOTIFY message is registered. But you are trying to reload an existing ListView with the WM_NOTIFY message previously registered. So it looks as if we need to UNregister the message, load the colours and then REregister the message - when we do that everything works as expected:

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>

#Include "GUIListViewEx_Test.au3"

#include <Array.au3>

; Create GUI
$hGUI = GUICreate("LVEx Example 1", 940, 510)

; Simulate data array and fill to show it fits
Global $aLVArray_1[20][40]
For $i = 0 to 19
    For $j = 0 To 39
        $aLVArray_1[$i][$j] = $i & " - " & $j
    Next
Next

Global $cLV_1 = GUICtrlCreateListView("blah", 10, 30, 920, 260, BitOR($LVS_SINGLESEL, $LVS_SHOWSELALWAYS))
_GUICtrlListView_SetExtendedListViewStyle($cLV_1, BitOR($LVS_EX_FULLROWSELECT, $LVS_EX_HEADERDRAGDROP, $LVS_EX_GRIDLINES));$LVS_EX_ONECLICKACTIVATE
; Add columns to match the size of the data array you want to add - you already have 1 so need to add 39
For $i = 0 To 38
    _GUICtrlListView_AddColumn($cLV_1, "Col " & $i, 30)
Next

$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, "", 0, 0, True, 1 + 8 + 32) ; + 16

; Insert the data
$aRet = _GUIListViewEx_InsertSpec($iLVIndex_1, 0, $aLVArray_1)

; You initiated to UDF to have colour, so you need to tell it what colours to use (all default in this case)
Global $aLVCol_1[20][40]
$iRet = _GUIListViewEx_LoadColour($iLVIndex_1, $aLVCol_1)

_GUIListViewEx_MsgRegister()

GUISetState()

Sleep(1000)

Global $aBVArray_1[90][40]
For $i = 0 to 89
    For $j = 0 To 39
        $aBVArray_1[$i][$j] = $i & " a- " & $j
    Next
Next

; Correctly clear and reload the ListView
;<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

; Close current ListView in the UDF
_GUIListViewEx_Close($iLVIndex_1)
; Delete current contant
_GUICtrlListView_DeleteAllItems($cLV_1)

; UNregister WM_NOTIFY ; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
GUIRegisterMsg(0x004E, "")

; Reinitialise the ListView
$iLVIndex_1 = _GUIListViewEx_Init($cLV_1, "", 0, 0, True, 1 + 8 + 32) ; + 16

; Insert the data
$aRet = _GUIListViewEx_InsertSpec($iLVIndex_1, 0, $aBVArray_1)

; You initiated to UDF to have colour, so you need to tell it what colours to use (all default in this case)
Global $aLVCol_1[90][40]
_GUIListViewEx_LoadColour($iLVIndex_1, $aLVCol_1)

; REregister WM_NOTIFY ; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
_GUIListViewEx_MsgRegister()

While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            Exit
    EndSwitch
WEnd

So thank you for finding this unexplored corner of the UDF - I shall now amend the Guide and develop a UDF function to UNregister the WM_NOTIFY message when needed.

M23

GUIListViewEx - BugFix Version 6 Apr 24

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