Question

我有一个如下所示的对象模型：

public class MyModel
{
    public List<MyOtherObject> TheListOfOtherObjects { get; set; }

    public List<int> MyOtherObjectIDs { get; set; }

    public void GetListOfMyOtherObjectIDs() 
    {
       // function that extracts the IDs of objects in
       // the list and assigns it to MyOtherObjectIDs
    }
}

目前，当查询填充GetListOfMyOtherObjectIDs时，我有一些执行TheListOfOtherObjects的代码。现在我在代码中还有另一个位置来填充此列表，当它执行时，它还需要执行GetListOfMyOtherObjectIDs函数。

有没有办法让这个过程自动生成，以便在TheListOfOtherObjects被弹出时，无论哪个代码触发它，对象模型都会自动执行GetListOfMyOtherObjectIDs？

Answer 1

使用您自己的set访问者：

public class MyModel
{
    private List<MyOtherObject> _TheListOfOtherObjects;
    public List<MyOtherObject> TheListOfOtherObjects {
        get { return _TheListOfOtherObjects; }
        set { _TheListOfOtherObjects = value; GetListOfMyOtherObjectIDs(); }
    }

    public List<int> MyOtherObjectIDs { get; set; }

    public void GetListOfMyOtherObjectIDs() 
    {
       // function that extracts the IDs of objects in
       // the list and assigns it to MyOtherObjectIDs
    }
}

在对象的属性更改时执行函数

1 个答案: