Binding to a Master/Detail Data Table

The following example demonstrates how to bind a grid to a DataTable that contains DataRelations that will be displayed as child and grandchild detail data.

The code below demonstrates how to create a connection to the Access version of the Northwind database and create a property named "Employees" that retrieves its values from the Employees data table and to which a child and grandchild detail are added.

XAML

<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid"
      xmlns:local="clr-namespace:Xceed.Wpf.Documentation">
    <Grid.Resources>
        <xcdg:DataGridCollectionViewSource x:Key="cvs_employees"
                                          Source="{Binding Source={x:Static Application.Current},
                                                            Path=Employees}"/>   
        <xcdg:IndexToOddConverter x:Key="rowIndexConverter" />
      
        <Style x:Key="alternatingDataRowStyle" TargetType="{x:Type xcdg:DataRow}">
            <Style.Triggers>
              <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self},
                                      Path=(xcdg:DataGridVirtualizingPanel.ItemIndex),
                                      Converter={StaticResource rowIndexConverter}}"
                            Value="True">
                  <Setter Property="Background" Value="AliceBlue"/>                   
              </DataTrigger>
            </Style.Triggers>
        </Style>
      </Grid.Resources>
    <xcdg:DataGridControl x:Name="EmployeesGrid"
                          ItemsSource="{Binding Source={StaticResource cvs_employees}}"
                          AutoCreateDetailConfigurations="True">  
        <xcdg:DataGridControl.Columns>
          <xcdg:Column FieldName="Photo"
                        Visible="False" />
        </xcdg:DataGridControl.Columns>
        <xcdg:DataGridControl.DetailConfigurations>
          <xcdg:DetailConfiguration RelationName="Employee_Orders"
                                    Title="Employee Orders"
                                    ItemContainerStyle="{StaticResource alternatingDataRowStyle}">
              <xcdg:DetailConfiguration.Columns>
                <xcdg:Column FieldName="EmployeeID"
                              Visible="False" />
              </xcdg:DetailConfiguration.Columns>
              <xcdg:DetailConfiguration.DetailConfigurations>
                <xcdg:DetailConfiguration RelationName="Order_OrderDetails"
                                          Title="Order Details"/>                   
              </xcdg:DetailConfiguration.DetailConfigurations>
          </xcdg:DetailConfiguration>
        </xcdg:DataGridControl.DetailConfigurations>       
    </xcdg:DataGridControl>
</Grid> 

C#

static App()
{
  DataSet dataSet = new DataSet();
  string mdbFile = @"Data\Northwind.mdb";
  string connString = String.Format( "Provider=Microsoft.ACE.OLEDB.12.0; Data Source={0}", mdbFile );
  OleDbConnection conn = new OleDbConnection( connString );
  m_adapter = new OleDbDataAdapter();
  m_adapter.SelectCommand = new OleDbCommand( "SELECT * FROM Employees;", conn );
  m_adapter.Fill( dataSet, "Employees" );
  m_employees = dataSet.Tables[ "Employees" ];    
    m_adapter = new OleDbDataAdapter();
    m_adapter.SelectCommand = new OleDbCommand( "SELECT * FROM Orders;", conn );
    m_adapter.Fill( dataSet, "Orders" );
    m_orders = dataSet.Tables[ "Orders" ];
  
    m_adapter = new OleDbDataAdapter();
    m_adapter.SelectCommand = new OleDbCommand( "SELECT * FROM [Order Details];", conn );
    m_adapter.Fill( dataSet, "Order Details" );
    m_orderDetails = dataSet.Tables[ "Order Details" ];
  m_employees.ChildRelations.Add( new DataRelation( "Employee_Orders", m_employees.Columns[ "EmployeeID" ], m_orders.Columns[ "EmployeeID" ] ) );
  m_orders.ChildRelations.Add( new DataRelation( "Order_OrderDetails", m_orders.Columns[ "OrderID" ], m_orderDetails.Columns[ "OrderID" ] ) );  
}
public static DataTable Employees
{
  get
  {
    return m_employees;
  }
}
private static DataTable m_employees;
private static DataTable m_orders;
private static DataTable m_orderDetails;
private static OleDbDataAdapter m_adapter = null;

VB.NET

  Shared Sub New()
    Dim dataSet As New DataSet()
    Dim mdbfile As String = "Data\Northwind.mdb"
    Dim connString As String = String.Format("Provider=Microsoft.ACE.OLEDB.12.0; Data Source={0}", mdbfile)
    Dim conn As New OleDbConnection(connString)
    Dim adapter As New OleDbDataAdapter()
    m_adapter = New OleDbDataAdapter()
    m_adapter.SelectCommand = New OleDbCommand( "SELECT * FROM Employees;", conn )
    m_adapter.Fill( dataSet, "Employees" )
    m_employees = dataSet.Tables( "Employees" )
    m_adapter = New OleDbDataAdapter()
    m_adapter.SelectCommand = New OleDbCommand( "SELECT * FROM Orders;", conn )
    m_adapter.Fill( dataSet, "Orders" )
    m_orders = dataSet.Tables( "Orders" )
  
    m_adapter = New OleDbDataAdapter()
    m_adapter.SelectCommand = New OleDbCommand( "SELECT * FROM [Order Details];", conn )
    m_adapter.Fill( dataSet, "Order Details" )
    m_orderDetails = dataSet.Tables( "Order Details" )
    m_employees.ChildRelations.Add( New DataRelation( "Employee_Orders", m_employees.Columns( "EmployeeID" ), m_orders.Columns( "EmployeeID" ) ) )
    m_orders.ChildRelations.Add( New DataRelation( "Order_OrderDetails", m_orders.Columns( "OrderID" ), m_orderDetails.Columns( "OrderID" ) ) )
  End Sub
  Public Shared ReadOnly Property Employees As DataTable
    Get
      Return m_employees
    End Get
  End Property
  Private Shared m_employees As DataTable
  Private Shared m_orders As DataTable
  Private Shared m_orderDetails As DataTable
  Private Shared m_adapter As OleDbDataAdapter = Nothing