返回通用列表的函数

Question

我有WPF应用程序项目,我正在使用EF.我想要这样的东西.

NorthwindEntities nwModel = new NorthwindEntities();
Employees emp;
List mylist = GenericFunc("emp.FirstName"); => returns a List<string>
and
List mylist = GenericFunc("emp.PostalCode"); => returns a List<int>

public static List<T> GenericFunc<T>(string myfield)
{...}

对不起,如果我犯了任何错误.

Answer 1

您最好使用LINQ而不是"GenericFunc",如下所示:

List<string> nameList = (from e in emp select emp.FirstName).ToList();
//and
List<int> postCodeList = (from e in emp select emp.PostalCode).ToList();