static TextBox()
{
FocusableProperty.OverrideDefaultValue(typeof(TextBox), true);
TextProperty.OverrideMetadata <TextBox>(new StyledPropertyMetadata <string>(defaultBindingMode: BindingMode.TwoWay));
}
static Class2()
{
FooProperty.OverrideMetadata <Class2>(
new StyledPropertyMetadata <int>(
coerce: CoerceFoo));
}