如何将其转换为c#

我仍然在尝试将东西从VB翻译到c#，我最近的问题涉及事件。在原来的Event文件中，我有

Public Event CommEvent As CommEventHandler
Public Delegate Sub CommEventHandler(ByVal source As Rs232, ByVal Mask As EventMasks)

然后调用上面的

Protected Sub OnCommEventReceived(ByVal source As Rs232, ByVal mask As EventMasks)
    Dim del As CommEventHandler = Me.CommEventEvent
    If (Not del Is Nothing) Then
        Dim SafeInvoker As ISynchronizeInvoke = Nothing
        Try
            SafeInvoker = DirectCast(del.Target, ISynchronizeInvoke)
        Catch
        End Try
        Try
            If (Not SafeInvoker Is Nothing) Then
                SafeInvoker.Invoke(del, New Object() {source, mask})
            Else
                del.Invoke(source, mask)
            End If
        Catch
            '!!! TO-DO
        End Try
    End If
End Sub

现在，如果我使用VB到c#的转换器在上面，我得到了很好的

public event CommEventHandler CommEvent;
public delegate void CommEventHandler(Rs232 source, EventMasks Mask);

,

protected void OnCommEventReceived(Rs232 source, EventMasks mask)
{
    CommEventHandler del = this.CommEventEvent;
    if (((del != null))) {
        ISynchronizeInvoke SafeInvoker = null;
        try {
            SafeInvoker = (ISynchronizeInvoke)del.Target;
        } catch {
        }
        try {
            if (((SafeInvoker != null))) {
                SafeInvoker.Invoke(del, new object[] { source, mask });
            } else {
                del.Invoke(source, mask);
            }
        } catch {
            //!!! TO-DO
        }
    }
}

我的问题是CommEventEvent。在c#文件中没有这个定义，但在原始的VB文件中有，而且，代码翻译器很高兴地翻译了它。

请问这是从哪里来的，我怎么能让它在c#文件中工作?

CommEventHandler del = this.CommEvent;