如何在 Linq 中格式化日期 [关闭]

Question

如何在 Linq 中格式化日期 --------------------------

Hi,
I am working on a linq query. I want to format date column to 'Mm/dd/yy' format. But, the Linq query shows error that Linq doesn't support formatting. Any help?

这是我的代码：

这是 linq 查询的一部分。我正在尝试格式化和连接两列。

select new abc
                           {
                               cardDates = (cad.Key.SchStartDT.ToString("dd/MM/yyyy") + "-" + cad.Key.SchEndDT.ToString("dd/MM/yyyy"))
                           });

Answer 1

此代码适用于（LINQ to Objects 案例）

    public class Person
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public DateTime DateOfBirth { get; set; }
    }


    private static void Main(string[] args)
    {

        var people = new List<Person>
        {
            new Person
            {
               Id = 1,
               Name = "James",
               DateOfBirth = DateTime.Today.AddYears(-25),
            },

            new Person
            {
                Id = 2,
                Name = "John",
                DateOfBirth = DateTime.Today.AddYears(-20),
            },

            new Person
            {
               Id = 3,
               Name = "Peter",
               DateOfBirth = DateTime.Today.AddYears(-15),
            }
       };

       var result = people.Select(t => new
       {
           t.Name,
           DateStr = t.DateOfBirth.ToString("dd/MM/yyyy")
       }).Take(2).ToList();

       foreach (var r in result)
       {
          Console.WriteLine(r.Name);
          Console.WriteLine(r.DateStr);
       }

       Console.ReadLine();
}

对于 Linq to Entities 案例，请查看此答案 Formatting date in Linq-to-Entities query causes exception