c#1_7.xaml

  <Grid Grid.Row="1" Name="FieldGrid"/>        
             
     <Grid.ColumnDefinitions>
  
           <ColumnDefinition Width="*" />
           <ColumnDefinition Width="*" />
           <ColumnDefinition Width="*" />
  
     </Grid.ColumnDefinitions>
  
     <Grid.RowDefinitions>
  
          <RowDefinition Height="*" />
          <RowDefinition Height="*" />
          <RowDefinition Height="*" />
  
     </Grid.RowDefinitions>
 </Grid>