.net - 如何创建处理程序

Question

添加下一个更改:

Emily::oSeMac^ Terminal;
    Emily::AsyncSocketController^ _socketManager;
    delegate void DataArrival(String^, array<unsigned char, 1>^, System::Net::IPEndPoint^);

    void _socketManager_onDataArrival(String^ SocketID, array<unsigned char, 1>^ SocketData, System::Net::IPEndPoint^ RemoteIP)
    {
        System::Object^ retData = Terminal->WhoCame (SocketID, SocketData, RemoteIP, _socketManager, 0); 
    }
    Form1(void)
    {
        InitializeComponent();
        _socketManager = gcnew Emily::AsyncSocketController(2000);
        _socketManager->onDataArrival += gcnew DataArrival(this, &AC_WebPassManager::Form1::_socketManager_onDataArrival);
        _socketManager->Start();
        Terminal = gcnew Emily::oSeMac();
    }

错误错误 C2664:“Emily::AsyncSocketController::onDataArrival::add”:无法将参数 1 从“AC_WebPassManager::Form1::DataArrival ^”转换为“Emily::AsyncSocketController::onDataArrivalEventHandler ^”1> 没有可用的用户定义转换运算符，或者1> 指向的类型不相关；转换需要 reinterpret_cast、C 风格转换或函数风格转换1>

Answer 1

_socketManager->onDataArrival += gcnew DataArrival(this,    &Test::Form1::_socketManager_onDataArrival_);

DataArrival 是委托(delegate):

public delegate DataArrival(String^, array<unsigned char, 1>^, System::Net::IPEndPoint^);

可能它已经在某处用其他名称定义了 - 请查看 Emily 命名空间中的委托(delegate)定义。