title: XamDatagrid UnboundField Checkbox Binding is not working
body: <p>Help needed. Why the below binding is not working. I want to have checkbox on each row of data. When the checkbox is checked/unchecked, it should invoke some event. </p>
  
  <pre><code>&lt;Grid.Resources&gt;
          &lt;Style x:Key="CheckboxStyle" TargetType="{x:Type igDP:CellValuePresenter}"&gt;
              &lt;Setter Property="Template"&gt;
                  &lt;Setter.Value&gt;
                      &lt;ControlTemplate TargetType="{x:Type igDP:CellValuePresenter}"&gt;
                           &lt;CheckBox Command="{Binding DataContext.IsCheckedBoolean, RelativeSource={RelativeSource AncestorType={x:Type igDP:XamDataGrid}}}" CommandParameter="{Binding}" /&gt;
                      &lt;/ControlTemplate&gt;
                  &lt;/Setter.Value&gt;
              &lt;/Setter&gt;
          &lt;/Style&gt;
  &lt;/Grid.Resources&gt;
  
  
  
  &lt;igDP:UnboundField Label="Action" Width="auto"&gt;
        &lt;igDP:UnboundField.Settings&gt;
              &lt;igDP:FieldSettings CellValuePresenterStyle="{StaticResource CheckboxStyle}" /&gt;
         &lt;/igDP:UnboundField.Settings&gt;
  &lt;/igDP:UnboundField&gt;
  </code></pre>
  
  <p>In order to test the binding, I use the below property returned in my viewmodel. The default value is false.</p>
  
  <pre><code>public Boolean IsCheckedBoolean
      {
          get { return _isChecked; }
          set
          {
              _isChecked = value;
              RaisePropertyChanged("IsCheckedBoolean");
          }
      }
  </code></pre>
  
  <p>I'm referring to this <a href="https://stackoverflow.com/questions/21042873/wpf-binding-add-button-to-unbound-field-in-grid">WPF Binding : Add Button to Unbound Field in grid</a></p>