TreeView index question

[UTA]

Hi everybody,

I'm playing around with a treeview object. But the items in the treeview seem to start at index 4?

And I neither know why nor if they begin always at 4.

My Prog:

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#Region Includes
#include <GUIConstantsEx.au3>
#include <TreeViewConstants.au3>
#include <WindowsConstants.au3>
#include <Array.au3>
#Include <GuiTreeView.au3>
#EndRegion Includes


#Region Definitions
    $ExeFullPath = @ScriptDir & "\" & StringRegExpReplace(@ScriptFullPath, "^.*\\|\..*$", "") & ".exe"
    $INIFullPath = @ScriptDir & "\" & StringRegExpReplace(@ScriptFullPath, "^.*\\|\..*$", "") & ".ini"
    Dim $SectionHandles[1]
    Dim $ItemHandles[1]
#EndRegion Definitions

#Region GUI
$Main = GUICreate("Treeview", 201, 461, 0, 0, BitOR($WS_SIZEBOX,$WS_THICKFRAME,$WS_POPUP,$WS_BORDER, $WS_CAPTION))
$TreeView1 = GUICtrlCreateTreeView(0, 0, 200, 460, BitOR($TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS, $TVS_NOSCROLL))

$SectionNames=GetCategories()
If $SectionNames[0]>0 then
    ReDim $SectionHandles[$SectionNames[0]+1]
    $SectionHandles[0]=$SectionNames[0]
    For $i=1 To $SectionNames[0]
        ; create Category
        $SectionHandles[$i]=GUICtrlCreateTreeViewItem($SectionNames[$i], $TreeView1)

        ; create Category-Items
        $ItemNames=GetCategoryItems($SectionNames[$i])
        If $ItemNames[0][0]<>-1 then
            ReDim $ItemHandles[$ItemNames[0][0]+1]
            $ItemHandles[0]=$ItemNames[0][0]
            For $j=1 To $ItemNames[0][0]
                $ItemHandles[$j]=GUICtrlCreateTreeViewItem($ItemNames[$j][0], $SectionHandles[$i])
            Next
        EndIf

    Next
EndIf
GUISetState(@SW_SHOW)
#EndRegion GUI



#Region GUI-MessageLoop
While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            SaveIt()
            Exit
    EndSwitch
WEnd
#EndRegion GUI-MessageLoop

#Region Functions


Func GetCategories()
    local $SectionArray[1]
    If FileExists($INIFullPath) Then
        $SectionArray=IniReadSectionNames($INIFullPath)
        ; delete Options-Section (not necessary)
        local $Options=_ArraySearch($SectionArray, "OPTIONS")
        If $Options>0 then _ArrayDelete($SectionArray, $Options)
        If IsArray($SectionArray) Then
            $SectionArray[0]-=1
        Else
            local $SectionArray[1]
            $SectionArray[0]=-1
        EndIf
    Else
        ReDim $SectionArray[1]
        $SectionArray[0]=-1
    EndIf
    Return $SectionArray
EndFunc


Func GetCategoryItems($CategoryName)
    local $ItemArray[1][1]
    $ItemArray=IniReadSection($INIFullPath, $CategoryName)
    If @error=1 then $ItemArray[0][0]=-1
    Return $ItemArray
EndFunc


Func SaveIt()
    ConsoleWrite("Treeview contains " & _GUICtrlTreeView_GetCount($TreeView1) & " elements" & @CRLF)
    If _GUICtrlTreeView_GetCount($TreeView1)>0 Then
        ConsoleWrite("Index-First-Item: " & _GUICtrlTreeView_Index($TreeView1, _GUICtrlTreeView_GetFirstItem($TreeView1)) & @CRLF)
        For $i=0 To 15
            ConsoleWrite($i & "/" & _GUICtrlTreeView_GetItemHandle($TreeView1, $i) & ": " & _GUICtrlTreeView_GetText($TreeView1, _GUICtrlTreeView_GetItemHandle($TreeView1, $i)) & @CRLF)
        Next
    EndIf
EndFunc
#EndRegion Functions

There should be a .ini-file with the same name as the script-name (e.g. "test.au3" <=> "test.ini") and look similar to this:

[OPTIONS]
Option1=99
[General]
About=1
[DISPLAY]
Resolution=2
Other=3
[Test]
what=4

Why are the items beginning at index 4 (see the console after closing) ???

UTA

Edited March 2, 2010 by UTA

[Beege]

Its how you wrote your code. Take a look at this and Notice the consolewrites. I added some to see what your control ids where being set as.

#Region GUI
$Main = GUICreate("Treeview", 201, 461, 0, 0, BitOR($WS_SIZEBOX,$WS_THICKFRAME,$WS_POPUP,$WS_BORDER, $WS_CAPTION))
$TreeView1 = GUICtrlCreateTreeView(0, 0, 200, 460, BitOR($TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS, $TVS_NOSCROLL))

$SectionNames=GetCategories()
If $SectionNames[0]>0 then
    ReDim $SectionHandles[$SectionNames[0]+1]
    $SectionHandles[0]=$SectionNames[0]
    For $i=1 To $SectionNames[0]
        ; create Category
        $SectionHandles[$i]=GUICtrlCreateTreeViewItem($SectionNames[$i], $TreeView1)
        ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $SectionHandles[$i] = ' & $SectionHandles[$i] & @crlf & '>Error code: ' & @error & @crlf) ;### Debug Console

        ; create Category-Items
        $ItemNames=GetCategoryItems($SectionNames[$i])
        If $ItemNames[0][0]<>-1 then
            ReDim $ItemHandles[$ItemNames[0][0]+1]
            $ItemHandles[0]=$ItemNames[0][0]
            For $j=1 To $ItemNames[0][0]
                $ItemHandles[$j]=GUICtrlCreateTreeViewItem($ItemNames[$j][0], $SectionHandles[$i])
                ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $ItemHandles[$j] = ' & $ItemHandles[$j] & @crlf & '>Error code: ' & @error & @crlf) ;### Debug Console
            Next
        EndIf

    Next
EndIf
GUISetState(@SW_SHOW)
#EndRegion GUI

Output shows:

>Error code: 0
@@ Debug(35) : $SectionHandles[$i] = 4
>Error code: 0
@@ Debug(44) : $ItemHandles[$j] = 5
>Error code: 0
@@ Debug(35) : $SectionHandles[$i] = 6
>Error code: 0
@@ Debug(44) : $ItemHandles[$j] = 7
>Error code: 0
@@ Debug(44) : $ItemHandles[$j] = 8
>Error code: 0
@@ Debug(35) : $SectionHandles[$i] = 9
>Error code: 0
@@ Debug(44) : $ItemHandles[$j] = 10

[UTA]

Its how you wrote your code. Take a look at this and Notice the consolewrites. I added some to see what your control ids where being set as.

I'm not sure if I understand. You mean it's self-induced???

I still can't get it... All I understand is that the first Section ($Section[1]) has the handle/control-ID "4". But I would expect that the item-index (NOT the handle/control-ID) depends on the position in the treeview. Because the position of an item in a treeview could change for instance while the handle should stay always the same, right?

UTA

Edited March 2, 2010 by UTA

[Beege]

I'm not sure if I understand. You mean it's self-induced???

I still can't get it... All I understand is that the first Section ($Section[1]) has the handle/control-ID "4". But I would expect that the item-index (NOT the handle/control-ID) depends on the position in the treeview. Because the position of an item in a treeview could change for instance while the handle should stay always the same, right?

UTA

Sorry I guess I'm a little confused too. Perhaps its got something to do with mixing the UDF treeview functions with the autoit treeview function. I know I have read many times you should only use one or the other. Ill play around and see if the same thing happens..

[Beege]

Real Quick, looking at the _GUICtrlTreeView_GetItemHandle() doc, it states that it needs the Item ID, not the item index. And how i'm reading it is that the index only count's for the children item. aka:

Resolution = index 1

Display = index 2

what = index 1

Edited March 2, 2010 by Beege