静态AOP Fody PropertyChanged

静态AOP Fody PropertyChanged

GitHub： https://github.com/Fody/PropertyChanged

nuget： Install-Package PropertyChanged.Fody

class Program
    {
        static void Main(string[] args)
        {
            //第一种
            Person person = new Person();
            ((INotifyPropertyChanged)person).PropertyChanged += Person_PropertyChanged;
            person.GivenNames = "test";

            //第二种 
            Person1 person1 = new Person1();
            ((INotifyPropertyChanged)person1).PropertyChanged += Person_PropertyChanged;
            person1.GivenNames = "test1";
            Console.Read();
        }

        private static void Person_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            Console.WriteLine("PropertyName:{0}", e.PropertyName);
        }
    }

    public class Person : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        public string GivenNames { get; set; }
        public string FamilyName { get; set; }

        [DoNotNotify]
        public string FullName
        {
            get
            {
                return string.Format("{0} {1}", GivenNames, FamilyName);
            }
        }
    }

    [ImplementPropertyChanged]
    public class Person1
    {
        public string GivenNames { get; set; }
        public string FamilyName { get; set; }

        [DoNotNotify]
        public string FullName
        {
            get
            {
                return string.Format("{0} {1}", GivenNames, FamilyName);
            }
        }
    }

Person_PropertyChanged能捕获到改变属性事件

底层属性绑定是IL静态绑定

在类上边写上一个Attribute [ImplementPropertyChanged]，类里的所有属性就都实现了属性通知事件

DoNotNotify：如果有某个属性不想实现通知事件，就在相应属性上加个[DoNotNotify]

AlsoNotifyFor：如果有某个属性像上边的FullName一样是2个属性的组合，任何一个变化都要通知都FullName变化，就在子属性GivenNames 和FamilyName上加个[AlsoNotifyFor("FullName")]

DependsOn：如果反过来FullName变了也让子属性变化，那就要在FullName上加上[DependsOn("GivenName","FamilyName")]

DoNotSetChanged：这个属性是说当FullName 的Set改变时，不会通知到子属性

DoNotCheckEquality：这个属性是说跳过相等的检查，