private static UncheckedBehavior GetOrCreateBehavior(CheckBox element)
{
var behavior = element.GetValue(UncheckedBehaviorProperty) as UncheckedBehavior;
if (behavior == null)
{
behavior = new UncheckedBehavior(element);
element.SetValue(UncheckedBehaviorProperty, behavior);
}
return(behavior);
}
public static void SetUncheckedBehavior(DependencyObject obj,
UncheckedBehavior value)
{
obj.SetValue(UncheckedBehaviorProperty, value);
}