I have only 2 classes:

```
class A 
{
   public B b = new B();    
   public bool flag {get; set;}
}

class B
{
  public void foo()
  {
   //iterates a dataTable with column "someBoolCondition"
   // I want to set A's bool to true, after the first record that has 'true' in column
   //"someBoolCondition". Thus is thought to avoid bool memebers in each class.
  }
}

```

My idea, wasn't so good as bool is of value type:
**I think it's a problem because I see the line "ReferenceToA.flag = true;" is executed but later I don't see A's flag turns into true (stays false). Why is that?**

```
   class A 
    {
       public bool flag {get; set;}

       public B b = new B();
       b.ReferenceToA = this;
    }

    class B
    {    
        public A ReferenceToA {get; set} 
        public void foo()
         {
           ReferenceToA.flag = true; //...
         }
    }

```

Is there an elegant way to do it like as for member of reference type?
Is it an overkill and should be done differently ?