wpf - What is the best C# collection with two keys and an object? -

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I get a menu manager class in which each module can add a key and element the main content Can be loaded in: 

  Private dictionary & lt; String, Object & gt; _mainContentItems = New Dictionary & lt; String, Object & gt; (); Public dictionary & lt; String, Object & gt; {Get {return_mancontent items; main content item; } Set {_mainContentItems = value; }}

Then the customer module registers its ideas: 

  Layout Manager. Main content Add ("Customer Support", this.container.Resolve & lt; HelpView & gt; ()); Layout Manager Main content Add ("customer-main", this content. Resolve 
 ());

Then again I say to bring a specific view of the front: 

  layoutManager.ShowMainContentView ("customer support"); To get the default view (first view registered), I say:  
  layoutManager.ShowDefaultView ("customer");  
 
 And it works fine. 
 
 However, I want to eliminate the "code smell" from the hyphen, which separates the name and the visual name of the module, so I register with this command: 
 
 < Code> layout manager. Add ("Customer", "Help", this.container.Resolve & lt; Help View & gt; ());  
 
  But what is the best way to change my existing dictionary, e.g. What comes to mind is this:  
 
     
  •   Glossary & lt; String, String, Object & gt;  
    •  
  •   dictionary & lt; KeyvaluePair & lt; String, string & gt;, object & gt;  
    •  
  •   Dictionaries & lt; CUSTOM_STRUCT, Object & gt;  
    •  
 
 The new collection should be able to: 
 
     
  •  Get a view with the module and the View key (like "Customer" / Li> 
  •  Get a collection of all the views by the module key (like "Customer" returns 5 views) 
    •

dictionaries & lt; Use string, dictionary & lt; string, object & gt; & gt; ; 

    var dict = new dictionary & lt; string , Dictionary & lt; string, object & gt; & g T; (); ... object view = dict ["customer"] ["help"]; dictionary & lt; string, object & gt; .view visualization = word ["customer"]. Value;

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