如何从方法返回匿名类型? [英] How can I return an anonymous type from a method?

问题描述

我有一个想要从多个地方调用的 Linq 查询:

I have a Linq query that I want to call from multiple places:

var myData = from a in db.MyTable
             where a.MyValue == "A"
             select new  {
                            a.Key,
                            a.MyValue
                          };

如何创建一个方法，将这段代码放入其中，然后调用它?

How can I create a method, put this code in it, and then call it?

public  ???  GetSomeData()
{
   // my Linq query
}

推荐答案

IQueryable 和 IEnumerable 都有效.但是您想使用特定于类型的版本，IQueryable<T> 或 IEnumerable <T>.

IQueryable and IEnumerable both work. But you want to use a type specific version, IQueryable<T> or IEnumerable <T>.

所以你需要创建一个类型来保存数据.

So you'll want to create a type to keep the data.

var myData = from a in db.MyTable
             where a.MyValue == "A"
             select new MyType
             {
                 Key = a.Key,
                 Value = a.MyValue
             };

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