TreeView Checkboxes help

[hounder]

im having trouble setting checkboxes in the treeview control.

heres my code,

For $i = 1 To $cities[0]
    $finditem = _GUICtrlTreeView_FindItem($hTreeView, $cities[$i])
    If $finditem Then
        _GUICtrlTreeView_SelectItem($hTreeView, $finditem)
        _GUICtrlTreeView_SetChecked($hTreeView, $finditem, True)
    EndIf
Next

now that works for setting each check box that i need set, but it takes an awful long time if their are alot of items in the $cities array. my guess is _GUICtrlTreeView_SelectItem is making it take so long. So my question is, is there a way i can use _GUICtrlTreeView_SetChecked without having to call SelectItem on the item i want checked first? i think my script would run alot faster if i could just check the items i want checked without having to select them beforehand. I've tried a couple ways, but none have worked out.

Any help would be much appreciated.

Edited June 27, 2011 by hounder

[Andreik]

Another way to select, if this is your question:

If you want to select another item in a TreeView then you can use $GUI_FOCUS - the parent TreeView gets the window focus and the specified item is marked as selected.

[AdmiralAlkex]

What is the SelectItem supposed to do? I think it's pointless. Comment/delete it.

[Zedna]

Look at these my posts and principles of possible UDFs speed optimizations:

I looked quickly at

_GUICtrlTreeView_FindItem()

_GUICtrlTreeView_SelectItem()

_GUICtrlTreeView_SetChecked()

and it can be optimized that way too.