Question

我有界面：

Public Interface ICSIItem

    Sub Initialize()
    Event AnswerValueChanged(ByVal sender As Object, ByVal e As NotebookAnswerChangedEventArgs)
    Property DataContext() As Object

End Interface

和转换器http://www.developerfusion.com/tools/convert/vb-to-csharp/

public interface ICSIItem
{
    void Initialize();
    event AnswerValueChangedEventHandler AnswerValueChanged;
    delegate void AnswerValueChangedEventHandler(object sender, NotebookAnswerChangedEventArgs e);
    object DataContext { get; set; }
}

并且resharper告诉我，委托不能在界面中。

这是NotebookAnswerChangedEventArgs类

public class NotebookAnswerChangedEventArgs : System.EventArgs
{
    public string NewAnswer;

    public string PreviousAnswer;

    public NotebookAnswerChangedEventArgs(string newAnswer, string previousAnswer) : base()
    {
        this.NewAnswer = newAnswer;
        this.PreviousAnswer = previousAnswer;
    }
}

你能帮忙进行这种转换，并请更好的转换器网站，因为这是非常差的：/

Answer 1

与VB.Net不同，C＃不允许接口声明嵌套类型。这包括代表。要解决此问题，只需将AnswerValueChangedEventHandler委托移到界面外。

public delegate void AnswerValueChangedEventHandler(
  object sender, 
  NotebookAnswerChangedEventArgs e);

public interface ICSIItem {
  void Initialize();
  event AnswerValueChangedEventHandler AnswerValueChanged;
  object DataContext { get; set; }
}

Answer 2

public interface ICSIItem {

   void Initialize();
   event EventHandler<NotebookAnswerChangedEventArgs> AnswerValueChanged;
   object DataContext { get; set; }

}

请注意 - 您的eventargs支持使用EventHandler - 我认为在这种情况下您应该使用EventHandler而不是重新定义自己的委托。

但我不知道有什么好的转换器。你为什么要转换？只需将您的VB.net代码放入dll并从C＃中使用它 - 如果您编写新代码，请在C＃中执行，并在需要时随时间转换。

将带有委托的接口从vb转换为c＃

2 个答案: