在C＃中，有没有编写自定义对象初始化新的数据类型的方法吗？ [英] In C#, is there a way to write custom object initializers for new data-types?

问题描述

在C＃中，有标准的初始技术{Property1 =A，Property2 =B}，并有用于集合（列表和字典）一组特殊的变种。 {值1，值}和{{键1，值1}，{KEY2，值2}}

In C#, there's the "standard" initializer technique { Property1 = "a", Property2 = "b" }, and there are a couple of special variants for collections (list and dictionary). {value1, value2}, and { {"key1", value1 }, {"key2", value2} }.

我想有一个递归对象初始化一棵树的数据类型，但我不知道是否有什么办法可以自定义机制。我想要的东西，看起来像一个s表达式。
{{ITEM1 item3的ITEM2 ITEM4} {ITEM5 ITEM6}}

I'd like to have a recursive object initializer for a tree data type, but I don't know if there's any way to customize that mechanism. I'd like something that looks like an s-expression. { item1 {item2 item3 item4 } {item5 item6} }

我通过构造这样做，但我想一个更简洁的语法。

I'm doing this via constructors, but I'd like a terser syntax.

推荐答案

如果您实施<罢工>的ICollection IEnumerable接口，并有一个方法叫加。顺便说一句，这是所有包含在ICollection接口这就是为什么我糊涂了。

If you implement the ICollection IEnumerable interface and have a method called add. Incidentally, this is all included in the ICollection interface which is why I confused it.

Test test = new Test() {
    new Test2() {
    	new Test3() {

    	}
    },
    new Test() {
    	new Test2() {
    		{ new Test(), new Test2() },
    		{ new Test(), new Test2() },
    		{ new Test(), new Test2() }
    	}
    }
};

public class Test : IEnumerable
{
    public void Add(Test a){}
    public void Add(Test2 a){}
    public IEnumerator GetEnumerator(){}
}

public class Test2 : IEnumerable
{
    public void Add(Test a, Test2 b){}
    public void Add(Test3 a){}
    public IEnumerator GetEnumerator(){}
}

public class Test3 : IEnumerable
{
    public void Add(Test a)	{}
    public void Add(Test2 a){}
    public IEnumerator GetEnumerator(){}
}

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