[Remoting]当client不复存在而RemoteObject并不知道时的处理办法

The basic idea is that we

1) gain Access to the multicast delegate instance that contains our event subscribers in its invocation list

2) loop through this invocation list and try to manually call invoke on each item

3) catch any exceptions from dead clients

4) remove dead client subscriptions from the invocation list

5) continue manually calling invoke on all the remaining items in invocation list.

(客户端靠不住，估计只能依靠服务器端主动了)：

public delegate void DelegateUsed( parameter list );

public event DelegateUsed ExampleEvent;

public void RaiseExampleEvent( )

{

Delegate[] targets = DelegateUsed.GetInvocationList();

foreach( DelegateUsed client in targets )

{

try

{

// Callback to client...

client( parameter list of delegate );

}

catch

{

// Failed to callback to client, remove reGIStered delegate.

RemoteFavoriteChanged -= client;

}

}

}

这样剔除那些不存在了的client。

编写者：郑昀@ultrapower

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