Function Reference

_GUICtrlTreeView_BeginUpdate

Prevents updating of the control until the EndUpdate function is called

#include <GuiTreeView.au3>
_GUICtrlTreeView_BeginUpdate ( $hWnd )

Parameters

$hWnd Control ID/Handle to the control

Return Value

Success: True.
Failure: False.

Related

_GUICtrlTreeView_EndUpdate

Example

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

Example()

Func Example()
        GUICreate("TreeView Begin/End Update (v" & @AutoItVersion & ")", 400, 300)

        Local $iStyle = BitOR($TVS_EDITLABELS, $TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS, $TVS_CHECKBOXES)
        Local $idTreeView = GUICtrlCreateTreeView(2, 2, 396, 268, $iStyle, $WS_EX_CLIENTEDGE)
        GUISetState(@SW_SHOW)

        _GUICtrlTreeView_BeginUpdate($idTreeView)
        For $x = 0 To 100
                _GUICtrlTreeView_Add($idTreeView, 0, StringFormat("[%02d] New Item", $x))
        Next
        _GUICtrlTreeView_EndUpdate($idTreeView)

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