在WPF中选择数据网格中的行时,如何勾选复选框列

我的DataGrid列出了保存在数据库中的联系人:

<DataGrid ItemsSource="{Binding ContactsView}"
            Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2"
            x:Name="contactsDataGrid" AutoGenerateColumns="False"
            EnableRowVirtualization="True" Padding="10"
            CanUserAddRows="False"
            RowDetailsVisibilityMode="VisibleWhenSelected"
            SelectionChanged="contactsDataGrid_SelectionChanged">
    <DataGrid.Columns>
        <DataGridCheckBoxColumn Header="Select" Width="50" />
        <DataGridTextColumn Binding="{Binding Salutation}" Header="Salut." />
        <DataGridTextColumn Binding="{Binding FirstName}" Header="First Name" />
        <DataGridTextColumn Binding="{Binding LastName}" Header="Last Name" />
        <DataGridTextColumn Binding="{Binding EmailAddress}" Header="Email Address" />
        <DataGridTextColumn Binding="{Binding Mobile}" Header="Mobile Number" />
        <DataGridTextColumn Binding="{Binding BroadDesignation}" Header="Broad Designation" />
        <DataGridTextColumn Binding="{Binding Designation}" Header="Designation" />
    </DataGrid.Columns>
</DataGrid>

用户应该通过单击来选择一行。选择后,联系人将添加到另一个列表中,稍后使用:

private List<Contact> SelectedContacts = new List<Contact>();
private void contactsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    DataGrid ThisGrid = (DataGrid)sender;            
    Contact SelectedContact = (Contact)ThisGrid.SelectedItem;

    if (!SelectedContacts.Contains(SelectedContact))
        SelectedContacts.Add(SelectedContact);
}

我如何使它在用户进行选择时 CheckBoxColumn 更改为选中复选框的状态,以便用户知道他们已经选择了该行?