System.Net.WebSockets.WebSocketBase.ThrowIfClosedOrAborted C# (CSharp) Method

        internal void ThrowIfClosedOrAborted()
        {
            if (State == WebSocketState.Closed || State == WebSocketState.Aborted)
            {
                throw new WebSocketException(WebSocketError.InvalidState,
                    SR.Format(SR.net_WebSockets_InvalidState_ClosedOrAborted, GetType().FullName, State));
            }
        }