title: How to pass the current row "This" as to a converter parameter
body: <p>So I have a view, containing a telerik RadGridView, this view is bound to several items, but importantly I need to bind the visibility of an item in one column, to 2 items. </p>
  
  <p>The converter will correctly evaluate the visility, however I need to pass back the previousProc, (currently handled) and also "This" which is a proc as well, just that row. </p>
  
  <pre><code>    &lt;telerik:RadGridView Name="ProcedureGrid"
                           DockPanel.Dock="Left"
                           SelectionMode="Single"
                           SelectionUnit="FullRow"
                           ItemsSource="{Binding Procedures}"
                           IsReadOnly="True"
                           AutoGenerateColumns="False"
                           ShowGroupPanel="False"
                           ShowColumnHeaders="False"  
                           CanUserReorderColumns ="False"
                           RowIndicatorVisibility="Collapsed"
                           Visibility="Collapsed"
                           Width="200"
                           FontSize="18"
                           SelectionChanged="ProcedureGrid_SelectionChanged"
                           &gt;
          &lt;telerik:RadGridView.Columns&gt;
              &lt;telerik:GridViewDataColumn Header="Name"
                                          AllowDrop="False"
                                          DataMemberBinding="{Binding Converter={StaticResource langConverter}}"
                                          IsGroupable="False" 
                                          IsFilterable="False"
                                          MaxWidth="155"/&gt;
              &lt;telerik:GridViewColumn&gt;
                  &lt;telerik:GridViewColumn.CellTemplate&gt;
                      &lt;DataTemplate&gt;
                          &lt;nav:SmallForwardNavigateIcon MaxWidth="30" DockPanel.Dock="Right" Margin="1"
                                                        Cursor="Hand" VerticalAlignment="Center" HorizontalAlignment="Center" 
                                                        MouseDown="SmallForwardNavigateIcon_MouseDown" 
                                                        Visibility="{Binding RelativeSource={RelativeSource FindAncestor, 
                                                                                              AncestorType={x:Type UserControl}}, 
                                                                                              Path=DataContext.previousProc, 
                                                                                              Converter={StaticResource IsPrevProc}}" /&gt;
                      &lt;/DataTemplate&gt;
                  &lt;/telerik:GridViewColumn.CellTemplate&gt;
              &lt;/telerik:GridViewColumn&gt;
          &lt;/telerik:RadGridView.Columns&gt;
      &lt;/telerik:RadGridView&gt;
  </code></pre>
  
  <p>can anyone see where I went wrong and what I could do to fix the xaml to pass both the previousproc and This back </p>