title: Datagrid not updating DataTable when applying a "single click" Style
body: <p>I am using a <code>Datagrid</code> and was asked to remove the annoying "double click" behavior of the Standard <code>DataGrid</code>, which contains a large number of autogenerated Checkbox-Columns.</p>
  
  <p>I found this Style, which works well enough:</p>
  
  <pre><code>&lt;Trigger Property="IsMouseOver" Value="True"&gt;
       &lt;Setter Property="IsEditing" Value="True" /&gt;
  &lt;/Trigger&gt;
  </code></pre>
  
  <p>If used, only a single click is needed to edit the <code>Checkbox</code>.</p>
  
  <p>Unfortunately, when this Style is used, the <code>Checkboxes</code> of the <code>DataGrid</code> are visually working, but the changes are not reflected in the <code>DataTable</code>.
  This is probably due to the fact, that the cells are still in Editing Mode. <strong>How can I circumvent this problem?</strong></p>
  
  <p>I tried to simple force cells to finish editing when the mouse leaves, but that does not work:</p>
  
  <pre><code>&lt;Trigger Property="IsMouseOver" Value="False"&gt;
      &lt;Setter Property="IsEditing" Value="False" /&gt;
  &lt;/Trigger&gt;
  </code></pre>