WebRTC_Sample.SessionForm.mData_OnClosing C# (CSharp) Method

        async void mData_OnClosing(WebRTCDataChannel sender)
        {
            await this.ContextSwitchToMessagePumpAsync(); // Switch to UI Thread so we can modify the UI
            messageTextBox.Text += ("Data Channel (" + sender.ChannelName + ") was closed\r\n");
            messageTextBox.Select(messageTextBox.Text.Length, 0);
        }