Question

我有这个

dynamic d = new ExpandoObject();
d.Name = attribute.QualifiedName.Name;

所以，我知道d将拥有一个属性Name。现在，如果我在编译时不知道属性的名称，我该如何将该属性添加到动态。我发现了这个SO Question

所以，有一个复杂的调用绑定器等概念......首先很难得到它。这样做的更简单的方法是什么？

Answer 1

dynamic d = new ExpandoObject();
((IDictionary<string,object>)d)["test"] = 1;
//now you have d.test = 1

Answer 2

这是一种更清洁的方式

var myObject = new ExpandoObject() as IDictionary<string, Object>; myObject.Add("Country", "Ireland");

Answer 3

您也可以这样做： -

Dictionary<string,object> coll = new Dictionary<string,object>();
    coll.Add("Prop1","hello");
    coll.Add("Prop2",1);
    System.Dynamic.ExpandoObject obj = dic.Expando();

//You can have this ext method to better help

public static ExpandoObject Expando(this IEnumerable<KeyValuePair<string, object>> 
dictionary)
        {
            var expando = new ExpandoObject();
            var expandoDic = (IDictionary<string, object>)expando;
            foreach (var item in dictionary)
            {
                expandoDic.Add(item);
            }
            return expando;
        }

动态添加属性到动态对象？

3 个答案: