Something weird in Visual Studio Debugger

I have some class with private member _stuffs which is of type IStuffs an interface.

When I set a break point just before getting out of the constructor, when debugging and watching the variable at the break point, local variable _stuffs is not null (filled with MyStuffs Object) whereas this._stuffs is null and when back in caller instance MyModelApp._stuffs stays null. Why it is not set with MyStuffs Object ?

public class MyModelApp : ModelApp, IModelApp
{

   private App _parent;

   private IStuffs _stuffs;

   public MyModelApp(object parent)
      : base(parent)
   {
      IStuffs _stuffs = new MyStuffs(this);

      // Break point here
   }    
}
Jon Skeet
people
quotationmark

Look carefully at your constructor:

public MyModelApp(object parent)
   : base(parent)
{
   IStuffs _stuffs = new MyStuffs(this);
}

You're declaring a local variable called _stuffs and giving it a value. That is not the same as the field _stuffs. I strongly suspect that you don't want a local variable - you just want to initialize the field instead:

public MyModelApp(object parent)
   : base(parent)
{
   _stuffs = new MyStuffs(this);
}

people

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