非バインド列の並べ替え

<!-- 開始 UserControl タグに ValueConverter の名前空間宣言を追加します。 -- >
xmlns:helper="clr-namespace:xamSamples_XAML"
<!--コンバーターおよび並べ替え比較演算子のリソースを追加します。 -->
<UserControl.Resources>
   <helper:TotalUnitsConverter x:Key="TotalUnitsConverter"/>
   <helper:MySortComparer x:Key="MySortComparer"/>
</UserControl.Resources>
<Grid x:Name="LayoutRoot" Background="White">
   <ig:XamGrid Grid.Row="0" x:Name="MyDataGrid" AutoGenerateColumns="False">
      <ig:XamGrid.Columns>
         <ig:TextColumn Key="ProductID"/>
         <ig:TextColumn Key="ProductName"/>
         <ig:TextColumn Key="QuantityPerUnit"/>
         <ig:TextColumn Key="UnitPrice"/>
         <ig:TextColumn Key="UnitsInStock"/>
         <ig:TextColumn Key="UnitsOnOrder"/>
         <ig:TextColumn Key="ReorderLevel"/>
         <ig:TextColumn Key="Discontinued"/>
         <!--非バインド列を作成し、ValueConverter および SortComparer にフックアップします。 -->
         <ig:UnboundColumn Key="Total Units" ValueConverter="{StaticResource TotalUnitsConverter}" SortComparer="{StaticResource MySortComparer}" IsSortable="True"/>
      </ig:XamGrid.Columns>
   </ig:XamGrid>
</Grid>

Dim MyColumn As New UnboundColumn()
MyColumn.Key = "Total Units"
MyColumn.ValueConverter = New TotalUnitsConverter()
MyColumn.SortComparer = New MySortComparer()
Me.MyDataGrid.Columns.Add(MyColumn)

this.MyDataGrid.Columns.Add(new UnboundColumn() { Key = "Total Units", ValueConverter = new TotalUnitsConverter(), SortComparer = new MySortComparer() });

Public Class MySortComparer
Inherits IComparer
   Public Function Compare(ByVal x As NorthwindServiceReference.Product, ByVal y As NorthwindServiceReference.Product) As Integer
      Dim x1 As Integer = (x.UnitsInStock + x.UnitsOnOrder)
      Dim y1 As Integer = (y.UnitsInStock + y.UnitsOnOrder)
      Return x1.CompareTo(y1)
   End Function
End Class

public class MySortComparer : IComparer<NorthwindServiceReference.Product>
{
   public int Compare(NorthwindServiceReference.Product x, NorthwindServiceReference.Product y)
   {
      int x1 = x.UnitsInStock + x.UnitsOnOrder;
      int y1 = y.UnitsInStock + y.UnitsOnOrder;
      return x1.CompareTo(y1);
   }
 }