Linq：选择Distinct and Order

Question

我有以下......

Dim dc as New DBDataContext
Dim q = From c In dc.Customers _
    Order By c.City _
    Select c.City _
    Distinct

我的问题是虽然查询产生了一个不同的列表但它没有排序。我如何实现这一目标。

Answer 1

Order By c.City修复后会移动Distinct吗？

Dim q = From c In dc.Customers _
    Select c.City _
    Distinct _
    Order By City

或如果以上不起作用，您可以在客户端进行订购操作：

Dim result = q.OrderBy(Function(x) x)

Answer 2

如果q是未排序的查询，那么您可以在之后对其进行排序

Dim sorted = From c in q order by c select c 

或

q = From c in q order by c select c