WPF Code Behind TempleteColumn

DataGridTemplateColumn col1 = new DataGridTemplateColumn();

col1.Header = "MyHeader";

FrameworkElementFactory factory1 = new FrameworkElementFactory(typeof(CheckBox));

Binding b1 = new Binding("IsSelected");

b1.Mode = BindingMode.TwoWay;

factory1.SetValue(CheckBox.IsCheckedProperty, b1);

factory1.AddHandler(CheckBox.CheckedEvent, new RoutedEventHandler(chkSelect_Checked));

DataTemplate cellTemplate1 = new DataTemplate();

cellTemplate1.VisualTree = factory1;

col1.CellTemplate = cellTemplate1;

dgTransportReqsts.DataGrid.Columns.Add(col1);