RequestAuthProviderEventHandler sealed delegate RequestAuthProviderEventHandler : MulticastDelegate Delegate for handling the RequestAuthProvider event. Documentation Code public RequestAuthProviderEventHandler(object object, IntPtr method) public virtual IAsyncResult BeginInvoke(RequestAuthProviderEventArgs args, AsyncCallback callback, object object) public virtual void EndInvoke(IAsyncResult result) public virtual void Invoke(RequestAuthProviderEventArgs args)