How get value of DataGridComboBoxColumn WPF?

Question

Hi, well I don´t know how get value the combobox in my datagrid. I need that when I press the buttonSave, I can get the value of items selected in the combobox.

 

In  XAML I have:

 

  <DataGrid Name="DataGridFile" SelectionMode="Extended" SelectionUnit="Cell" ColumnWidth="*" HorizontalAlignment="Left" VerticalAlignment="Top" ItemsSource="{Binding Path=DataGRid, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" AutoGenerateColumns="False" CanUserAddRows="False" Margin="20,80,0,0" Height="304" Width="1140" RowHeaderWidth="0">

<DataGrid.Columns>  

   <DataGridTextColumn Header="Date" Binding="{Binding Path=Date}" IsReadOnly="True"/> 

       <DataGridComboBoxColumn Header="Asignar" x:Name="ComboBoxUser" DisplayMemberPath="Name" ItemsSource="{Binding UsuarioAssets}"                                                                                                    SelectedItemBinding="{Binding Path=Name}" /> 

 

      <DataGridTemplateColumn Header="Acción">

                  <DataGridTemplateColumn.CellTemplate>

                        <DataTemplate>

                              <Button Content="Save" CommandParameter="{Binding Path=ID}" Click="ButtonSave_Click" ClickMode="Press" />

                     </DataTemplate>

                  </DataGridTemplateColumn.CellTemplate>

      </DataGridTemplateColumn>

 

</DataGrid.Columns>

</DataGrid>

 

 

In the  xaml.cs :

 

 

public class Users

{

public string Id { set; get; }

public string Name { set; get; }

}

 

 

List<Users> userlist = new List<Users>();

for (int j = 0; j < dtUser.Rows.Count; j++)

{

if (dtUser.Rows[j][3].ToString().Trim() != "admin")

{ userlist.Add(new UsuarioAssets { Id = j.ToString(), Name = dtUser.Rows[j][3].ToString() }); }

}

ComboBoxUser.ItemsSource = userlist;

 

//Note: With this I can see the users en my combobox 

 

private void ButtonSave_Click(object sender, RoutedEventArgs e)

{

 // I don´t know how get item selected 

} 

 

In internet I read that I get value with Datagrid.Rows but .Rows isn´t in System.Windows.Controls only in System.Windows.Forms

 

I hope you can help me!