使用Property属性调用方法/执行代码 [英] Call method/execute piece of code using Property attribute

问题描述

只是想知道是否可以使用property属性调用方法.基本上，我想在任何公共属性发生更改时设置实体的状态.

Just wondering if it's possible to call a method using property attribute. Basically, I want to set state of the entity when any of the public property changes.

就像我们有以下代码一样

Like we have following code

public class Contact : EntityBase
{
    [NotifyChange]
    public string FirstName { get; set; }

    private void ChangeState()
    {
       EntityState = EntityState.Modified;
    }
}

当我们打电话时

var c = new Contact();
c.FirstName = "John";

在设置FirstName的值之前(或之后)，它将调用EntityState()函数.

before (or after) setting value of FirstName, it call EntityState() function.

有什么主意吗?

推荐答案

如果将属性重写为:

public class Contact : EntityBase
{

    private string _firstName;

    [NotifyChange]
    public string FirstName
    {
        get
        {
            return _firstName;
        }
        set
        {
            ChangeState();
            _firstName = value;
        }
    }

    private void ChangeState()
    {
       EntityState = EntityState.Modified;
    }
}

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