New Post: Multiple UpdateBindingSource calls with DataGrid

Hi,

First thing I can see : In you XAML, the "xcdg:Column" should be included in a "xcdg:DataGridControl.Columns" tag.

After modifying slightly your sample, I have 2 calls to "UpdateSource" and 1 call to "UpdateTarget" wheather there is an error or not.

Before going further in the code, can you check my sample does what you want or if I am missing something through my sample that could explain the 13 calls.

Thanks.

<xcdg:DataGridControl x:Name="_dataGrid"
                            AutoCreateColumns="False"
                            IsDeleteCommandEnabled="False"
                            IsRefreshCommandEnabled="False"
                            ItemScrollingBehavior="Immediate"
                            ItemsSource="{Binding Path=OrderDetails}">
         <xcdg:DataGridControl.Columns>
            <xcdg:Column FieldName="Quantity"
                         CellEditorDisplayConditions="CellIsCurrent"
                         CellHorizontalContentAlignment="Right"
                         Title="Quantity">
               <xcdg:Column.CellContentTemplate>
                  <DataTemplate>
                     <TextBlock Text="{Binding Path=., StringFormat={}{0:N0}, ValidatesOnDataErrors=True}" />
                  </DataTemplate>
               </xcdg:Column.CellContentTemplate>
               <xcdg:Column.CellErrorStyle>
                  <Style TargetType="{x:Type xcdg:Cell}">
                     <Setter Property="BorderBrush"
                             Value="Red" />
                     <Setter Property="BorderThickness"
                             Value="1" />
                  </Style>
               </xcdg:Column.CellErrorStyle>
               <xcdg:Column.CellEditor>
                  <xcdg:CellEditor>
                     <xcdg:CellEditor.EditTemplate>
                        <DataTemplate>
                           <toolkit:IntegerUpDown Value="{xcdg:CellEditorBinding}"
                                                  Minimum="0" />
                        </DataTemplate>
                     </xcdg:CellEditor.EditTemplate>
                  </xcdg:CellEditor>
               </xcdg:Column.CellEditor>
            </xcdg:Column>
         </xcdg:DataGridControl.Columns>
         
</xcdg:DataGridControl>

public partial class MainWindow : Window
  {
    public MainWindow()
    {
      InitializeComponent();

      _dataGrid.DataContext = this;
      this.OrderDetails = new ObservableCollection<OrderDetail>()
      {
        new OrderDetail() { Name = "Orange", Quantity = 12},
        new OrderDetail() { Name = "Apple", Quantity = 2},
        new OrderDetail() { Name = "Tomato", Quantity = 33},
        new OrderDetail() { Name = "Strawberry", Quantity = 10},
        new OrderDetail() { Name = "Peas", Quantity = 15}
      };
    }

    public ObservableCollection<OrderDetail> OrderDetails
    {
      get;
      set;
    }
  }

  public class OrderDetail : IDataErrorInfo, INotifyPropertyChanged
  {
    public string Name
    {
      get;
      set;
    }

    public int Quantity
    {
      get
      {
        return quantity;
      }
      set
      {
        quantity = value;
        this.NotifyPropertyChanged( "Quantity" ); 
      }
    }
    private int quantity;

    public event PropertyChangedEventHandler PropertyChanged;
    protected void NotifyPropertyChanged( string propertyName )
    {
      if( this.PropertyChanged != null )
      {
        this.PropertyChanged( this, new PropertyChangedEventArgs( propertyName ) );
      }
    }

    public string Error
    {
      get
      {
        return string.Empty;
      }
    }

    public string this[ string columnName ]
    {
      get
      {
        string result = null;
        switch( columnName )
        {
          case "Quantity":
            {
              if( this.Quantity <= 5 )
              {
                result = "Value must be greater than 5";
              }
              break;
            }
          default:
            {
              break;
            }
        }
        return result;
      }
    }
  }