title: DevExpress GridControl cells' inner text selectable but not editable
body: <p>GridControl is working like~ Excel natively:</p>
  
  <ol>
  <li>Clicking <strong>once</strong> on the cell <strong>selects it</strong>. Copy copies the cell value and the header.</li>
  <li>Clicking <strong>twice</strong> on the cell <strong>selects the inner text</strong>. Copy copies only the inner text.</li>
  </ol>
  
  <p>I am working on preventing the cell edition hooking the <code>ShowingEditor</code> event, setting the edition to <code>e.Cancel</code>.</p>
  
  <p>However this prevents the behaviour 2. above. I'd like to still <strong>be able to select the inner text for copy</strong>, just that I'd like it to be <strong>not editable</strong>.</p>
  
  <p>Would you know how to do this? Fyi, this behavior can be achieved at a column level by setting the <code>ReadOnly</code> to true:</p>
  
  <pre><code>&lt;dxg:GridControl.Columns&gt;
      &lt;dxg:GridColumn FieldName="field" ReadOnly="True"/&gt;
  </code></pre>
  
  <hr>
  
  <p><strong>EDIT</strong></p>
  
  <p>My grid is setup like this:</p>
  
  <pre><code>&lt;dxg:GridControl&gt;
      &lt;dxg:GridControl.Resources&gt;
      &lt;/dxg:GridControl.Resources&gt;
      &lt;dxg:GridControl.View&gt;
          &lt;dxg:GridControl.TableView&gt;
          &lt;/dxg:GridControl.TableView&gt;
      &lt;/dxg:GridControl.View&gt;
      &lt;dxg:GridControl.Columns&gt;
      &lt;/dxg:GridControl.Columns&gt;
  &lt;/dxg:GridControl&gt;
  </code></pre>
  
  <p>Thank you!</p>