SignalR核心hubconnection lambda动作

Question

我有一个简单的SignalR核心集线器连接，集线器连接有一个On方法，它采用一个动作处理程序我目前有一个像下面的lambda但我想使用一个事件处理程序，所以我可以轻松取消订阅，防止任何内存泄漏。

hubConnection.On<string, string>(ReceiveMethodKey, (user, message) =>
            {
                var finalMessage = $"{user} says {message}";
                // Update the UI
            });

Answer 1

使用代表：

class MyClass : IDisposable
{
    private Action<string, string> HubConnectionOnDelegate;

    private void InitOrSomething()
    {
        //Pointer to a method, anonymous method, whatever...
        HubConnectionOnDelegate = HubConnection_On;
    }

    private static void HubConnection_On(string user, string message)
    {
        var finalMessage = $"{user} says {message}";
        // Update the UI
    }

    private void Elsewhere()
    {
        hubConnection.On<string, string>(ReceiveMethodKey, HubConnectionOnDelegate);
    }

    public void Dispose()
    {
        HubConnectionOnDelegate = null;
    }
}