title: Access class fields from partial class
body: <p>I'm currently in a scenario in which I have to make use of partial classes.
  In this partial class I have a few methods that need to address fields in the other class.</p>
  
  <p>for example</p>
  
  <p><strong>Edit: I'm sorry: the first class is already declared <code>partial</code>!</strong></p>
  
  <pre><code>public partial class myClass
  {        
      private string _myString;
  
      public string myString
      {
          get { return _myString; }
          set { _myString = value; }
      }
  }
  </code></pre>
  
  <p>and</p>
  
  <pre><code>public partial class myClass
  {
      public void doSomething()
      {
          myString = "newString";
      }
  }
  </code></pre>
  
  <p>The compiler says <code>myString</code> doesn't exist in the partial class!</p>
  
  <p>How can I overcome this problem?</p>