[ObsoleteAttribute("the method is not implemented")]
public override void BeginUpdate()

<ObsoleteAttribute("the method is not implemented")> 
Public Overrides Sub BeginUpdate

public:
[ObsoleteAttribute(L"the method is not implemented")]
virtual void BeginUpdate() override

[<ObsoleteAttribute("the method is not implemented")>]
abstract BeginUpdate : unit -> unit 
[<ObsoleteAttribute("the method is not implemented")>]
override BeginUpdate : unit -> unit