asp.net mvc - Call SignalR Client method from normal C# class -

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I am trying to add signal R to my MVC project. I need to call the signal and client method from my class library. I used the code below. 

  Public class CommomHubManager: ICommomHubManager {readonly IHubContext References; Public CommomHubManager () {Reference = Helpers. the provider. Hubcontact Provider & lt; Hub Notifications & gt; .HubContext; } Public Action AddUserToGroup (string group name) {Return function. Factor STARTNU ((=) = & gt; {context.Clients.All.addUserToGroup (groupName);}); }}   
 This is not working, but when I try to call another hub class method from WebAP, its work is fine. I want to know that it is possible to call the  Signal R  client method from the normal C # class?   
 
 
  
  preference = globalhost.com connectionManager.gatehbkontex & lt; CommmHub Manager & gt; (); Context.Clients.All.Send ("Admin", "Stop Chat");   
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