c# - How should one implement the communication between classes in an MVC pattern? -

preamble: question not asp.net mvc framework.

edit: more clear application game written in c# various web frameworks not applicable.

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how should best connect classes events when building using mvc pattern?

i'm wanting write mvc code can learn more design pattern. understand why each of these 3 elements of pattern should separate, i'm not how implement connecting them together. i'm writing in c#, i'm new with, , strikes me events should used. i'm unsure of how should subscribe/unsubscribe events, , need sanity check.

for example i'll post view/controller classes. in example view wants send datarequest event, , controller wants subscribe pass along model. on other side of things controller @ point raise dataupdated event view should subscribe to. way i've implemented how they're subscribing each other make sense?

//////////////////////////////////////////////////// public class uiscreenview {     public event system.eventhandler<system.eventargs> datarequestedevent;      //====================================     private void dataupdatedeventhandler(object sender, system.eventargs args);       //====================================     //====================================     public void subscribe(uiscreencontroller controller)     {         controller.dataupdatedevent += dataupdatedeventhandler;         controller.subscribe(this);     }      //====================================     //====================================     public void unsubscribe(uiscreencontroller controller)     {         controller.dataupdatedevent -= dataupdatedeventhandler;         controller.unsubscribe(this);     } } 

and controller:

public class uiscreencontroller {     private uiscreenview view;      public event system.eventhandler<system.eventargs> dataupdatedevent;      private void datarequestedeventhandler(object sender, system.eventargs args);      public void init(uiscreenview v)     {         view = v;          if (view != null)         {             view.subscribe(this);         }     }      ~uiscreencontroller()     {         if (view)         {             view.unsubscribe(this);             view = null;             }     }      public void subscribe(uiscreenview view)     {         view.datarequestedevent += datarequestedeventhandler;     }      public void unsubscribe(uiscreenview view)     {         view.datarequestedevent -= datarequestedeventhandler;     }      private void datarequestedeventhandler(object sender, system.eventargs args)     {         //request data model     } } 

what have done , tried make is mvp pattern, not mvc. in short, mvc pattern used request-response architecture , not event driven. flow is:

• ui request
• controller accept request
• controller process request (such accessing model, etc)
• controller send response ui

if want implement in c#, assume winform, request handled inside events. lets in game choose menu load game, afterwards need show saved game data.

the following example illustration, expect non-real life logic apply. controller like:

public class savedatacontroller {     public savedata[] getsavedata()     {         return model.getsavedata();     } } 

and ui like:

public void loadgamebutton_click(object sender, eventargs e) {     savedatacontroller controller = new savedatacontroller();     savedata[] savedata = controller.getsavedata();     savedatalist.datasource = savedata; } 

this example shows request controller being initiated in button click event.

as other said, mvc architecture not suited non-web application (or event driven) not handle event methods. of ui logic handled in event.