将属性添加到ExpandoObject中，其名称与字符串相同 [英] Add property to ExpandoObject with the same name as a string

问题描述

是否可以将属性添加到与字符串值同名的ExpandoObject中?

Is there a way to add a property to an ExpandoObject with the same name as a string value?

例如，如果我有:

string propName = "ProductNumber";
dynamic obj = new System.Dynamic.ExpandoObject();

我可以创建属性ProductNumber，例如:

I can create the property ProductNumber like:

obj.ProductNumber = 123;

但是，我可以基于字符串propName创建属性obj.ProductNumber吗?因此，如果我不知道该属性的高级名称，则可以基于此输入来创建它.如果ExpandoObject无法做到这一点，我应该研究C#的其他任何领域吗?

But, can I create the property obj.ProductNumber based on the string propName? So, if I don't know what the name of the property will be in advanced, I can create it based on this input. If this is not possible with ExpandoObject, any other areas of C# I should look into?

推荐答案

ExpandoObject实现IDictionary<string, object>:

ExpandoObject implements IDictionary<string, object>:

((IDictionary<string, object>)obj)[propName] = propValue

我不知道您是否可以在dynamic引用中使用索引器语法(即，不使用强制转换)，但是您当然可以尝试并找出来.

I don't know off the top of my head whether you can use the indexer syntax with a dynamic reference (i.e., without the cast), but you can certainly try it and find out.

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