Function Reference


_GUICtrlTreeView_Expand

Expands or collapses the list of child items associated with the specified parent item, if any

#include <GuiTreeView.au3>
_GUICtrlTreeView_Expand ( $hWnd [, $hItem = 0 [, $bExpand = True]] )

Parameters

$hWnd Control ID/Handle to the control
$hItem [optional] Handle to the item
$bExpand [optional] Expand or Collapse, use the following values:
    True - Expand items
    False - Collapse items

Return Value

None.

Related

_GUICtrlTreeView_ExpandedOnce, _GUICtrlTreeView_GetExpanded

Example

#include <GUIConstantsEx.au3>
#include <GuiTreeView.au3>
#include <MsgBoxConstants.au3>
#include <WindowsConstants.au3>

Example()

Func Example()
    Local $aidItem[5], $idTreeView
    Local $iStyle = BitOR($TVS_EDITLABELS, $TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS, $TVS_CHECKBOXES)

    GUICreate("TreeView Expand", 400, 300)

    $idTreeView = GUICtrlCreateTreeView(2, 2, 396, 268, $iStyle, $WS_EX_CLIENTEDGE)
    GUISetState(@SW_SHOW)

    _GUICtrlTreeView_BeginUpdate($idTreeView)
    For $x = 0 To 4
        $aidItem[$x] = GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Item", $x), $idTreeView)
        For $y = 0 To 2
            GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Item", $y), $aidItem[$x])
        Next
    Next
    _GUICtrlTreeView_EndUpdate($idTreeView)

    MsgBox($MB_SYSTEMMODAL, "Information", "Expand All")
    _GUICtrlTreeView_Expand($idTreeView)

    MsgBox($MB_SYSTEMMODAL, "Information", "Collapse All")
    _GUICtrlTreeView_Expand($idTreeView, 0, False)

    MsgBox($MB_SYSTEMMODAL, "Information", "Expand item 0")
    _GUICtrlTreeView_Expand($idTreeView, $aidItem[0])

    MsgBox($MB_SYSTEMMODAL, "Information", "Collapse item 0")
    _GUICtrlTreeView_Expand($idTreeView, $aidItem[0], False)

    ; Loop until the user exits.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
    GUIDelete()
EndFunc   ;==>Example