Linq 将某些属性选择到另一个对象中? [英] Linq Select Certain Properties Into Another Object?

问题描述

所以说我有一组 Bloops

So say I have a collection of Bloops

Class Bloop
  Public FirstName
  Public LastName
  Public Address
  Public Number
  Public OtherStuff
End Class

然后我有一类 Razzies

Then I have a class of Razzies

Class Razzie
  Public FirstName
  Public LastName
End Class

是否可以使用 Linq 从 Bloops 集合中的所有 Bloops 中选择 FirstName 和 LastName 并返回 Razzies 集合?还是我只能使用 For-Loop 来完成我的工作?

Is it possible using Linq to select the FirstName and LastName out of all the Bloops in the collection of Bloops and return a collection of Razzies? Or am i limited to a For-Loop to do my work?

要消除任何混淆，VB 或 C# 都可以.此外，这可能会导致我问(使用Where"子句怎么样)的问题.

To clear up any confusion, either VB or C# will do. Also this will probably lead to me asking the question of (What about using a "Where" clause).

推荐答案

这应该可以:

Dim results = From item In bloops _
              Select New Razzie() With _
              { _
                  .FirstName = item.FirstName, _
                  .LastName = item.LastName _
              }

如果您想将结果从 IEnumerable(LINQ 查询返回的内容)转换为数组或 List，只需附加一个调用分别到 ToArray() 或 ToList() 扩展方法.

And if you want to convert the result from IEnumerable<Bloop> (what the LINQ query returns) to an array or List<Bloop>, just append a call to the ToArray() or ToList() extension methods respectively.

更正了代码，使其现在具有有效的 VB.NET 9 语法.

Corrected the code so that it now has valid VB.NET 9 syntax.

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