在C#中，如何从ExpandoObject中删除属性? [英] In C#, how do I remove a property from an ExpandoObject?

问题描述

说我有这个对象:

dynamic foo = new ExpandoObject();
foo.bar = "fizz";
foo.bang = "buzz";

例如，如何删除foo.bang?

我不想简单地将属性的值设置为null，出于我的目的，我需要将其完全删除.另外，我意识到我可以通过从第一个绘制kv对来创建一个全新的ExpandoObject，但这效率很低.

I don't want to simply set the property's value to null--for my purposes I need to remove it altogether. Also, I realize that I could create a whole new ExpandoObject by drawing kv pairs from the first, but that would be pretty inefficient.

推荐答案

将Expando投射到IDictionary<string, object>并调用

Cast the expando to IDictionary<string, object> and call Remove:

var dict = (IDictionary<string, object>)foo;
dict.Remove("bang");

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