C# 如何将匿名类型转换为 Ttype？
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How can I convert Anonymous type to Ttype?
提问by Vikas
How can I use Cast() Extension method for above conversion?
如何使用 Cast() 扩展方法进行上述转换？
e.g.
例如
var aType = anonymousType;
IEnumreable<MyType> = aType.Cast();
Solved By
解决者
aType.Select(i => new MyType { } ).ToList();
采纳答案by Guffa
The only type that you can cast an anonymous type to is Object. If you want any other type, you have to create those objects from the data in the anonymously typed objects.
您可以将匿名类型强制转换为的唯一类型是Object. 如果您想要任何其他类型，则必须从匿名类型对象中的数据创建这些对象。
Example:
例子：
List<MyType> items = aType.Select(t => new MyType(t.Some, t.Other)).ToList();
You should consider to create the MyTypeobjects already when you get the data, instead of creating anonymously typed objects.
您应该考虑MyType在获取数据时已经创建对象，而不是创建匿名类型的对象。
回答by MiffTheFox
IEnumreable<MyType> n = (IEnumreable<MyType>)aType;
回答by Dario
Is aTypeis an IEnumerable<anonymous type>returned by e.g. a linq query?
难道aType是一个IEnumerable<anonymous type>由例如LINQ查询返回的？
You might want to use Select(which applies a transformation function to an element) insted of Castwhich just performs a cast.
您可能想要使用Select（将转换函数应用于元素） insted ，Cast其中只执行强制转换。
IEnumerable<MyType> = aCollection.Select(e => SomeExpressionWithE);
回答by Gerardo Contijoch
Here's an article that may help you. Although I think Guffa is right, you should create an instance of your class whenever you need them. Anonymous types are not meant to be used that way.
这是一篇可能对您有所帮助的文章。尽管我认为 Guffa 是对的，但您应该在需要时创建类的实例。匿名类型不应该以这种方式使用。
Here's the link: http://www.codeproject.com/KB/cs/castinganonymous.aspx
这是链接：http: //www.codeproject.com/KB/cs/castinganonymous.aspx
