<data:DataGrid x:Name="dataGrid1" 
    Height="140" Margin="0,5,0,10"
    AutoGenerateColumns="True" />            

        dataGrid1.ItemsSource = Customer.GetSampleCustomerList()

// Set the ItemsSource to autogenerate the columns.
dataGrid1.ItemsSource = Customer.GetSampleCustomerList();

Public Class Customer
    Dim m_FirstName As String
    Dim m_LastName As String
    Dim m_Address As String
    Dim m_IsNew As Boolean
    Dim m_IsSubscribed As Boolean?

    Public Sub New(ByVal firstName As String, ByVal lastName As String, ByVal address As String, ByVal isNew As Boolean, ByVal isSubscribed As Boolean?)
        Me.FirstName = firstName
        Me.LastName = lastName
        Me.Address = address
        Me.IsNew = isNew
        Me.IsSubscribed = isSubscribed
    End Sub

    Property FirstName() As String
        Get
            Return m_FirstName
        End Get
        Set(ByVal value As String)
            m_FirstName = value
        End Set
    End Property

    Property LastName() As String
        Get
            Return m_LastName
        End Get
        Set(ByVal value As String)
            m_LastName = value
        End Set
    End Property

    Property Address() As String
        Get
            Return m_Address
        End Get
        Set(ByVal value As String)
            m_Address = value
        End Set
    End Property

    Property IsNew() As Boolean
        Get
            Return m_IsNew
        End Get
        Set(ByVal value As Boolean)
            m_IsNew = value
        End Set
    End Property

    Property IsSubscribed() As Boolean?
        Get
            Return m_IsSubscribed
        End Get
        Set(ByVal value As Boolean?)
            m_IsSubscribed = value
        End Set
    End Property

    Public Shared Function GetSampleCustomerList() As List(Of Customer)
        Return New List(Of Customer)(New Customer() _
               {New Customer("A.", "Zero", "12 North Third Street, Apartment 45", False, True), _
                New Customer("B.", "One", "34 West Fifth Street, Apartment 67", False, False), _
                New Customer("C.", "Two", "56 East Seventh Street, Apartment 89", True, Nothing), _
                New Customer("D.", "Three", "78 South Ninth Street, Apartment 10", True, True)})
    End Function
End Class

public class Customer
{
    public String FirstName { get; set; }
    public String LastName { get; set; }
    public String Address { get; set; }
    public Boolean IsNew { get; set; }

    // A null value for IsSubscribed can indicate 
    // "no preference" or "no response".
    public Boolean? IsSubscribed { get; set; }

    public Customer(String firstName, String lastName, 
        String address, Boolean isNew, Boolean? isSubscribed)
    {
        this.FirstName = firstName;
        this.LastName = lastName;
        this.Address = address;
        this.IsNew = isNew; 
        this.IsSubscribed = isSubscribed;
    }

    public static List<Customer> GetSampleCustomerList()
    {
        return new List<Customer>(new Customer[4] {
            new Customer("A.", "Zero", 
                "12 North Third Street, Apartment 45", 
                false, true), 
            new Customer("B.", "One", 
                "34 West Fifth Street, Apartment 67", 
                false, false),
            new Customer("C.", "Two", 
                "56 East Seventh Street, Apartment 89", 
                true, null),
            new Customer("D.", "Three", 
                "78 South Ninth Street, Apartment 10", 
                true, true)
        });
    }
}