public ColumnBinderSelector(Selector tb)
: base(tb)
{
Binding = (BindingExpression)tb.SetBinding(Selector.SelectedItemProperty,
new System.Windows.Data.Binding("Value")
{
Source = this,
Mode = System.Windows.Data.BindingMode.TwoWay,
ValidatesOnExceptions = true,
NotifyOnValidationError = true
});
}