title: change object field with upating bounded text field
body: <p>How can I solve this problem:</p>
  
  <pre><code>private void SetupBindings()
  {    
          MyObj = new MyObjClass();
          MyObjSource.DataSource = typeof(MyObjClass);
          MyObjSource.Clear();
          MyObjSource.Add(new MyObjClass());
          txtMyField1.DataBindings.Add(new Binding("Text", MyObjSource, "MyField1", true));
  }
  
  
  private void blablabla()
  {
          // I need here update MyField1 of current MyObjSource object 
          // txtMyField1 text value must be updated
  }
  </code></pre>
  
  <p>P.S. If only one object is stored in MyObjSource, can I use?</p>
  
  <pre><code>MyObjSource.DataSource = new MyObjClass()
  </code></pre>