public PackageChooserDialog()
{
InitializeComponent();
SetBinding(SortColumnProperty, new Binding("SortColumn") { Mode = BindingMode.OneWay });
SetBinding(SortDirectionProperty, new Binding("SortDirection") { Mode = BindingMode.OneWay });
SetBinding(SortCounterProperty, new Binding("SortCounter") { Mode = BindingMode.OneWay });
}