title: XceedGrid. How to make cell editable related to other column(readonly)
body: <p>I have boolean Property SpecValue what indicates that other property can be modified.</p>
  
  <p>I can't find good solution how to do it.</p>
  
  <p>I use next solution, but there is some bugs.</p>
  
  <pre><code>&lt;xcdg:Column Title="Value" FieldName="Value"  Width="100" MaxWidth="100" MinWidth="100"&gt;    
  &lt;xcdg:Column.CellEditor&gt;
      &lt;xcdg:CellEditor&gt;
          &lt;xcdg:CellEditor.EditTemplate&gt;
              &lt;DataTemplate&gt;
                  &lt;TextBox x:Name="txtSpecVal" Text="{xcdgg:CellEditorBinding}" IsReadOnly="False"/&gt;
                  &lt;DataTemplate.Triggers&gt;
                      &lt;DataTrigger Binding="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type xcdg:Row}},Path=DataContext.SpecificValue}" Value="False"&gt;
                          &lt;Setter TargetName="txtSpecVal" Property="IsReadOnly" Value="True"/&gt;
                          &lt;Setter TargetName="txtSpecVal" Property="BorderBrush" Value="Transparent"/&gt;
                      &lt;/DataTrigger&gt;
                  &lt;/DataTemplate.Triggers&gt;
              &lt;/DataTemplate&gt;
          &lt;/xcdg:CellEditor.EditTemplate&gt;
      &lt;/xcdg:CellEditor&gt;
  &lt;/xcdg:Column.CellEditor&gt;
  </code></pre>
  
  <p></p>