protected BinderRule(IActivateItems activator, T toTest, Func <T, object> propertyToCheck, Control control)
{
ErrorProvider = new ErrorProvider();
Activator = activator;
ToTest = toTest;
PropertyToCheck = propertyToCheck;
Control = control;
activator.OnRuleRegistered(this);
toTest.PropertyChanged += ToTest_PropertyChanged;
}