2009-08-14 191 views

回答

6

您至少需要3個程序集來避免循環引用。

C#庫:

namespace CSLibrary 
    { 
    public class CSClass 
    { 
     public delegate string ACSharpDelegate (string message); 

     public string Hello (string message) 
     { 
     return string.Format("Hello {0}", message); 
     } 
    } 
    } 

C++/CLI庫(引用CSLibrary):

using namespace System; 

namespace CPPLibrary { 

    public ref class CPPClass 
    { 
    public: 
    String^ UseDelegate(CSLibrary::CSClass::ACSharpDelegate^ dlg) 
    { 
     String^ dlgReturn = dlg("World"); 
     return String::Format("{0} !", dlgReturn); 
    } 
    }; 
} 

C#程序(參考CSLibrary和CPPLibrary):

namespace ConsoleApplication 
{ 
    class Program 
    { 
    static void Main (string [] args) 
    { 
     CSLibrary.CSClass a = new CSLibrary.CSClass(); 
     CSLibrary.CSClass.ACSharpDelegate dlg = new CSLibrary.CSClass.ACSharpDelegate (a.Hello); 

     CPPLibrary.CPPClass b = new CPPLibrary.CPPClass(); 
     String result = b.UseDelegate (dlg); 

     Console.WriteLine (result); 
     Console.Read(); 
    } 
    } 
} 
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