NGWS SDK Documentation  

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TreeView.BeginUpdate

Disables redrawing of the tree view. A call to beginUpdate() must be balanced by a following call to endUpdate(). Following a call to beginUpdate(), any redrawing caused by operations performed on the tree view is deferred until the call to endUpdate().

[Visual Basic]
Public Sub BeginUpdate()
[C#]
public void BeginUpdate();
[C++]
public: void BeginUpdate();
[JScript]
public function BeginUpdate();

See Also

TreeView Class | TreeView Members | System.WinForms Namespace