title: .Net interface with AutoCad - how to make a selection
body: <p>How to select all object within the drawing?</p>
  
  <p>Sometthing related to </p>
  
  <pre><code>AcadSelectionSet select = _acadCurrentDocument.SelectionSets.Add("my");
  select.Select(AcSelect.acSelectionSetAll);
  </code></pre>
  
  <p>But cannot make it working.</p>