C# 带有ExpandooObject的动态LINQ-Groupby导致错误：没有适用的索引器

是否可以使用带有ExpandooObject的动态LINQ执行分组

考虑下面的例子；理想情况下，我想要一个ExpandoObjects的分组列表

谢谢你抽出时间

var listOfExpandoObjects = new List<ExpandoObject>();
var expandoObject = new ExpandoObject();
((IDictionary<string, object>)expandoObject).Add("DynamicProperty", "RepeatedItem");
((IDictionary<string, object>)expandoObject).Add("OtherProperty", "First");
listOfExpandoObjects.Add(expandoObject);

expandoObject = new ExpandoObject();
((IDictionary<string, object>)expandoObject).Add("DynamicProperty", "RepeatedItem");
((IDictionary<string, object>)expandoObject).Add("OtherProperty", "Second");
listOfExpandoObjects.Add(expandoObject);

var dynamicGroupBy = "new ( it[\"DynamicProperty\"] )";
var groupedItems = listOfExpandoObjects.GroupBy(dynamicGroupBy, "it"); // <------- Error: 'No applicable indexer exists in type 'ExpandoObject''

var listofexpandooobjects=new List（）；
var expandoObject=新的expandoObject（）；
（（IDictionary）expandooObject）。添加（“DynamicProperty”、“RepeatedItem”）；
（（IDictionary）expandooObject）。添加（“其他属性”、“第一”）；
expandooobjects.Add列表（expandooobject）；
expandoObject=新的expandoObject（）；
（（IDictionary）expandooObject）。添加（“DynamicProperty”、“RepeatedItem”）；
（（IDictionary）expandooObject）。添加（“其他属性”、“第二”）；
expandooobjects.Add列表（expandooobject）；
var dynamicGroupBy=“新建（它[\”DynamicProperty\“]）”；
var groupedItems=listOfExpandoObjects.GroupBy（dynamicGroupBy，“it”）；// 我想你想要这样的东西

dynamic expandoObject = new ExpandoObject();
expandoObject.DynamicProperty = " RepeatedItem";
expandoObject.OtherProperty = "First";

dynamic secondExpandoObject = new ExpandoObject();
secondExpandoObject.DynamicProperty = "RepeatedItem";
secondExpandoObject.OtherProperty = "Second";

var listOfExpandoObjects = new List<dynamic> { expandoObject, secondExpandoObject };

var dynamicProperty = "DynamicProperty";

var groupedItems =
    from IDictionary<string, object> expando in listOfExpandoObjects
    group expando by expando[dynamicProperty];

dynamic expandoObject=new expandoObject（）；
expandoObject.DynamicProperty=“RepeatedItem”；
expandoObject.OtherProperty=“First”；
dynamic secondExpandoObject=新的ExpandoObject（）；
secondExpandoObject.DynamicProperty=“RepeatedItem”；
secondExpandoObject.OtherProperty=“Second”；
var listofexpandooobjects=新列表{expandooobject，secondexpandooobject}；
var dynamicProperty=“dynamicProperty”；
var-groupedItems=
来自Expandoo对象列表中的IDictionary expando
按expando[动态属性]分组expando；