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Convert Action to Action<object>

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感动是毒
感动是毒 2020-12-11 14:19

I am stuck.

How do I convert the Action to an Action in C#?

Regards Magnus

4条回答
  • 我在风中等你
    我在风中等你 (楼主)
    2020-12-11 15:01

    I was looking for a way to do this today and stumbled upon this post. Really, the only simple way I found to do it was to wrap Action within a new Action. In my case, I was pushing my Actions into a Concurrent Dictionary, and then retrieving them by type. Effectively, I was processing a queue of messages where actions could be defined to handle messages with a particular typed input.

    var _actions = new ConcurrentDictionary>();
Action actionStr = s => Console.WriteLine(s);
var actionObj = new Action(obj => { var castObj = (V)Convert.ChangeType(obj, typeof(V)); actionStr(castObj); } );
_actions.TryAdd(typeof(string), actionObj);

    
    
             
    
                                                        
    
            
            
    
              
                
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