Treeview

[fifi]

Hi,

i am sorry but i can not find a way with treeview to get the handle of the mainitem, if a subitem of a mainitem is clicked.

For example:

Tree

----->Mainitem1

----------->Subitem11

----------->Subitem12

----->Mainitem2

----------->Subitem21

----------->Subitem22

...

For example:

The subitem12 is clicked (Mainitem1 must be expanded to see subitem12)

and i need to know the handle of Mainitem1.

I have seen that there a new things in Beta 54, but i do not understand the documentation how to use this.

Thankx for help

FIFI

[jpm]

Hi,

i am sorry but i can not find a way with treeview to get the handle of the mainitem, if a subitem of a mainitem is clicked.

For example:

Tree

----->Mainitem1

----------->Subitem11

----------->Subitem12

----->Mainitem2

----------->Subitem21

----------->Subitem22

...

For example:

The subitem12 is clicked (Mainitem1 must be expanded to see subitem12)

and i need to know the handle of Mainitem1.

I have seen that there a new things in Beta 54, but i do not understand the documentation how to use this.

Thankx for help

FIFI

<{POST_SNAPBACK}>

From my point of view there is no way to retrieve the relation. You need to memorize what you did at the creation time and use the ControlId of subitem.

From my point of view .54 does add anything in this area.

Holger can confirm all this information in case I am wrong.

[Holger]

Maybe like this:

expandcollapse popup

#include <GUIConstants.au3>

Global $TV_FIRST            = 0x1100
Global $TVM_GETNEXTITEM        = $TV_FIRST + 10
Global $TVGN_PARENT            = 0x0003
Global $TVGN_CARET            = 0x0009

GUICreate("Test")
$tree        = GUICtrlCreateTreeView(10,10,200,200)

$item1        = GUICtrlCreateTreeViewItem("Mainitem1",$tree)
$subitem1    = GUICtrlCreateTreeViewItem("Subitem11",$item1)
$subitem2    = GUICtrlCreateTreeViewItem("Subitem12",$item1)
$item2        = GUICtrlCreateTreeViewItem("Mainitem2",$tree)
$subitem3    = GUICtrlCreateTreeViewItem("Subitem21",$item2)
$subitem4    = GUICtrlCreateTreeViewItem("Subitem22",$item2)

$button        = GUICtrlCreateButton("Check",50,220,70,20)

GUISetState()

While 1
    $msg = GUIGetMsg()
    Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
        Case $msg = $button
            Msgbox(0,"Handle",GetItemHandle(GUICtrlRead($tree)))
    EndSelect    
WEnd

Exit

Func GetItemHandle($item)
    $hItem        = GUICtrlSendMsg($tree,$TVM_GETNEXTITEM,$TVGN_CARET,0)
    $hParent    = GUICtrlSendMsg($tree,$TVM_GETNEXTITEM,$TVGN_PARENT,$hItem)
    Return $hParent
EndFunc

Regards

Holger

P.S. maybe there are some UDF's in the new beta - I don't know at the moment...

Edited July 1, 2005 by Holger

[fifi]

Hi Holger,

very good idea!

Is there another tricky way to get from the handle back to the ControlID-Variable (for examle: $item1)?

Thank you!

FIFI

[GaryFrost]

I suppose I can add that one as _GUICtrlTreeViewGetParentHandle, man that's a long function name.

Edit: or _GUICtrlTreeViewGetParentID ?

Edited July 4, 2005 by gafrost

[fifi]

I suppose I can add that one as _GUICtrlTreeViewGetParentHandle, man that's a long function name.

Edit: or _GUICtrlTreeViewGetParentID ?

<{POST_SNAPBACK}>

Hi,

will you add this to the treeview UDF?

If yes, I think there should be better a UDF which delivers the value of the Control-ID.

FIFI

[fifi]

Hi,

i am sorry but there is an error in the example at the Function Reference of _GUICtrlTreeViewGetParentHandle.

At the example the function call is named _GUICtrlTreeViewGetParentID, which does (at the moment?) not exist.

Again my question:

Is it possible to add a UDF that delivers the value of the Control-ID ($parentitem) of the parent item instead of the windows handle?

FIFI

[GaryFrost]

Hi,

i am sorry but there is an error in the example at the Function Reference of _GUICtrlTreeViewGetParentHandle.

At the example the function call is named _GUICtrlTreeViewGetParentID, which does (at the moment?) not exist.

Again my question:

Is it possible to add a UDF that delivers the value of the Control-ID ($parentitem) of the parent item instead of the windows handle?

FIFI

<{POST_SNAPBACK}>

Thanks, corrected my example, and sent.

I'll look into it when I get time.

Edited July 6, 2005 by gafrost

[fifi]

Hi gafrost,

maybe i am to silly and do not see an easy way to solve my problem.

I am building a application where the user can edit the text of the items of the treeview. Everything works fine with that. But to catch logical errors of the entered text by the user i have to read the text of the mainitem above the edited subitem.

Little bit confusing, so i try to show my problem you with your example of the new beta:

___________________________________________________________________

#include <GUIConstants.au3>

#include <GuiTreeView.au3>

opt ("MustDeclareVars", 1)

Dim $tree, $item1, $subitem1, $subitem2, $item2, $subitem3, $subitem4, $button, $msg, $Status

GUICreate("Test", 392, 254)

$tree = GUICtrlCreateTreeView(10, 10, 200, 200)

$item1 = GUICtrlCreateTreeViewItem("Mainitem1", $tree)

$subitem1 = GUICtrlCreateTreeViewItem("Subitem11", $item1)

$subitem2 = GUICtrlCreateTreeViewItem("Subitem12", $item1)

$item2 = GUICtrlCreateTreeViewItem("Mainitem2", $tree)

$subitem3 = GUICtrlCreateTreeViewItem("Subitem21", $item2)

$subitem4 = GUICtrlCreateTreeViewItem("Subitem22", $item2)

$button = GUICtrlCreateButton("Check", 220, 100, 70, 20)

$Status = GUICtrlCreateLabel("", 0, 234, 392, 20, BitOR($SS_SUNKEN, $SS_CENTER))

GUISetState()

While 1

$msg = GUIGetMsg()

Select

Case $msg = $GUI_EVENT_CLOSE

ExitLoop

Case $msg = $button

GUICtrlSetData($Status, "Parent Handle: " & _GUICtrlTreeViewGetParentHandle ($tree))

EndSelect

WEnd

Exit

__________________________________________________________________

So at runtime in the statusline is showed for example "1318728" for the handle of Mainitem2 if i click subitem 21.

Now i want to read the text of mainitem2. How do i get from this returned handle back to the Control-ID which is stored at creating of the item in the variable $item2 ($item2 = GUICtrlCreateTreeViewItem("Mainitem2", $tree)) with the value 7.

In my complex application i use a array for managing the control-ID's. So i will not work with the windowshandle. For me it would be better to return the control-id (in my example 7).

Does this help to understand my question?

Thanks

FIFI

[GaryFrost]

I'll submit the function you need tonight after work, but here it is so you can use it

#include <GUIConstants.au3>
#include <GuiTreeView.au3>
opt("MustDeclareVars", 1)

Dim $tree, $item1, $subitem1, $subitem2, $item2, $subitem3, $subitem4, $button, $msg, $Status, $parent
GUICreate("Test", 392, 254)
$tree = GUICtrlCreateTreeView(10, 10, 200, 200)
$item1 = GUICtrlCreateTreeViewItem("Mainitem1", $tree)
$subitem1 = GUICtrlCreateTreeViewItem("Subitem11", $item1)
$subitem2 = GUICtrlCreateTreeViewItem("Subitem12", $item1)
$item2 = GUICtrlCreateTreeViewItem("Mainitem2", $tree)
$subitem3 = GUICtrlCreateTreeViewItem("Subitem21", $item2)
$subitem4 = GUICtrlCreateTreeViewItem("Subitem22", $item2)
$button = GUICtrlCreateButton("Check", 220, 100, 70, 20)
$Status = GUICtrlCreateLabel("", 0, 234, 392, 20, BitOR($SS_SUNKEN, $SS_CENTER))

GUISetState()
While 1
   $msg = GUIGetMsg()
   Select
      Case $msg = $GUI_EVENT_CLOSE
         ExitLoop
      Case $msg = $button
         $parent = GUICtrlRead(_GUICtrlTreeViewGetParentID ($tree), 1)
         GUICtrlSetData($Status, "Parent Text: " & $parent[0])
   EndSelect
WEnd
Exit

;===============================================================================
;
; Description:            _GUICtrlTreeViewGetParentID
; Parameter(s):        $h_treeview - controlID
; Requirement:            None
; Return Value(s):    Returns the parent control ID
; User CallTip:        _GUICtrlTreeViewGetParentID($h_treeview) Gets the parent control ID of item selected in Tree-View control (required: <GuiTreeView.au3>)
; Author(s):            Gary Frost (custompcs@charter.net)
; Note(s):                :
;
;===============================================================================
Func _GUICtrlTreeViewGetParentID($h_treeview)
   Dim $hParent, $hItem, $iParent
  ; get the handle to item selected
   $hItem = GUICtrlSendMsg($h_treeview, $TVM_GETNEXTITEM, $TVGN_CARET, 0)
  ; get the handle to parent of item selected
   $hParent = GUICtrlSendMsg($h_treeview, $TVM_GETNEXTITEM, $TVGN_PARENT, $hItem)
  ; set parent to selected
   GUICtrlSendMsg($h_treeview, $TVM_SELECTITEM, $TVGN_CARET, $hParent)
  ; get the control id of parent
   $iParent = GUICtrlRead($h_treeview)
  ; set selected back to original selected
   GUICtrlSendMsg($h_treeview, $TVM_SELECTITEM, $TVGN_CARET, $hItem)
   Return $iParent
EndFunc  ;==>_GUICtrlTreeViewGetParentID

Gary

Edited July 6, 2005 by gafrost

[fifi]

Works great.

Thank you very much for quick help!

FIFI