WPF Datagrid clipboard get cell value - wpf

Question

I need to handle the Ctrl+C function in my datagrid, especially I need to get the cell of a selected value. Here's the XAML code of the datagrid. Please note that I use DataGridTextColumn
<DataGrid x:Name="GridFormule" Grid.Row="0" BorderBrush="#abadb3" CanUserSortColumns="true" Sorting="GridFormule_Sorting" MaxColumnWidth="Infinity" Style="{DynamicResource DataGridStyle}" ColumnHeaderStyle="{DynamicResource DataGridColumnHeaderStyle}" ItemsSource="{Binding ElementName=ObjectsTree, Path=SelectedItem.Infos}" CellEditEnding="GridFormule_CellEditEnding" Margin="8,5,2,0" ContextMenu="{StaticResource cntextListe}">
<!-- OVERRIDE COPY CONTROL -->
<DataGrid.InputBindings>
<KeyBinding Key="C" Modifiers="Control" Command="Copy" />
</DataGrid.InputBindings>
<DataGrid.CommandBindings>
<CommandBinding Command="Copy" Executed="Comandi_Executed" />
</DataGrid.CommandBindings>
<!-- /OVERRIDE COPY CONTROL -->
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Field.Formula.Formula, Mode=TwoWay}" Header="#_57_Formule" Foreground="Black" Width="*" ClipboardContentBinding="{Binding Field.Formula.Formula, Mode=TwoWay}">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="Padding" Value="4" />
<Setter Property="FontWeight" Value="Normal" />
<Setter Property="FontSize" Value="11.55" />
<Style.Triggers>
<DataTrigger Binding="{Binding IsDirty}" Value="True">
<Setter Property="TextBlock.Background" Value="{StaticResource IsDirtyColor}" />
<Setter Property="Padding" Value="4" />
</DataTrigger>
</Style.Triggers>
</Style>
</DataGridTextColumn.ElementStyle>
<DataGridTextColumn.EditingElementStyle>
<Style TargetType="TextBox">
<Setter Property="Background" Value="White"></Setter>
<Setter Property="Padding" Value="2,4,2,3"></Setter>
<Setter Property="BorderThickness" Value="0"></Setter>
</Style>
</DataGridTextColumn.EditingElementStyle>
</DataGridTextColumn>
</DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
The code behind to handle the copy:
private void Comandi_Executed(object sender, ExecutedRoutedEventArgs e)
{
RoutedUICommand c = (RoutedUICommand)e.Command;
switch (c.Name)
{
// Copia
case "Copy":
DataGrid sel = (sender as DataGrid);
if (sel == null) return;
if (sel.CurrentItem != null) return;
var cc = sel.CurrentColumn;
Binding binding = (Binding)cc;
// Here I get the property Name!
string BoundPropName = binding.Path.Path;
try
{
//Clipboard.SetDataObject(text);
}
catch (Exception ex)
{
Global.LOG.Log(ex.Message);
}
break;
}
}
Basically my BoundPropName returns "Field.Formula.Formula" instead of the value visible in the cell of datagrid. How can I get the cell value?