Using a value from a private variable or from an actual property in class functions?

Question

When referring to class properties from a function inside a class, do you use the value from the actual property or the value of a private variable?

Which way is better? Why?

public class

  private m_Foo as double

  public property Foo() as double
    get
      return m_Foo
    end get
    set(byval value as double)
      m_Foo = value
    end set
  end property

  public function bar() as double
    Dim x as double = 5 * m_Foo
    Dim y as double = 3 * Foo
  end function

end class

Answer 1

Personally, I try to use get / set accessor when possible, so as not to be surprised when I change my logic, and suddenly the places where I access the private field do not work properly.

Answer 2

- - , . .

Answer 3

. , . , . , - , .

Answer 4

, ( ) , get. , get -, "" , , .

Answer 5

.

-,

get/seters ?

-, :

http://blogs.msdn.com/ericlippert/archive/2009/01/14/automatic-vs-explicit-properties.aspx

Answer 6

, .

public class MyClass 
{

   private List<string> _someList;

   public List<string> SomeString
   {
      get
      {
         if(_someList == null)
            _someList = new List<string>();
         return _someList;
      }
   }

}

_someList, . .

Some may argue that a private variable should simply be declared as new in the first place or initialized in the constructor, and not as a property, but this should at least highlight a possible problem, since this is a general approach.