Linq到通用列表? [英] Linq to generic list?

问题描述

在我的DAL中，我有3-5个列表:

in my DAL I have 3-5 Lists of something:

List<User>, List<Items>, List<bla>

现在，我想在方法中修改这些通用列表.

Now I want to modify these Lists generic in a method.

如何编写带有所有这些参数允许的方法? (我尝试使用var，但方法头不允许这样做)

How can I write a method with parameters allowed of all of this? (I tried var but don't allowed in the method head)

P.s .:不在乎类型，我会很轻松地将其退回:

P.s.: Don't care about type, I will cast it back easily:

List<User> user; user = (List<User>)MethodName(user);

推荐答案

您的问题有些含糊，但我怀疑您正在寻找:

Your question is somewhat vague, but I suspect you're looking for:

void SomeMethod(IList list)

如果您实际上是在方法中更改列表，则不需要返回值.

If you're actually changing the list within the method, you don't need a return value.

另一种方法(坦率地说，更好)是使方法通用:

An alternatively (a nicer one, frankly) is to make the method generic:

void SomeMethod<T>(IList<T> list)

这篇关于Linq到通用列表?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！