c# - How to destory instance of class when finished Action -

i use mvvm in project . first @ see edit action:

[httpget]     public async virtual task<actionresult> edit(int code)     {         var attributemodel = await _attributeservice.getasync(code);         editattributeviewmodel attributeviewmodel = mapper.map(attributemodel, new editattributeviewmodel());         return view(attributeviewmodel);     } 

in viewmodel count instance :

 public class editattributeviewmodel {     private static int counter = 0;     public editattributeviewmodel()     {         interlocked.increment(ref counter);     }     ~editattributeviewmodel()     {         interlocked.decrement(ref counter);     } } 

when finished edit action , change controller , comeback again edit action , when see counter increase , while moving between pages.i not want use memory, override dispose method in controller :

    protected override void dispose(bool disposing)     {         base.dispose(disposing);      } 

but doest chnage , counter increase .

how can clear instance when finshed actionmethod

unlike in c++, can't free memory on demand. dispose pattern there release unmanaged resources (file handlers, connections, or pictures unmanaged, read: reserved outside of .net memory management uses intptr).

all can is, set references null , call .dispose() on disposable types in class, wait until garbage collection pick them up.

depending no how application utilize memory, may sooner or later. if application instantiates , unreferencing objects may happen sooner, if application doesn't may take longer.

you shouldn't depend on finalizer (that looks deconstructor in c++) called or when. gc calls it, when it's cleaning up. if haven't suppressed (which typically inside dispose method).