c# - Sort Data Descending

Question

I have the following data that its retrieved from two textbox. I would like to Sort it Descending by Time. I tried using a Dictionary but I cant insert duplicate values. Any Ideas?

ID     time                             ID       time
4       10                              15        19       
12      13      WANT SORTED BY TIME     12        13
15      19      ---->>                  12        13
4       10                              4         10 
12      13                              4         10

Answer 1

字典不允许重复键，所以这不是你想要的，因为你的ID值显然不是唯一的键值。

创建一个类来保存您的数据，然后使用 Linq 的 OrderByDescending 对其进行排序：

public class MyTimeData {
   public int ID { get; set; }
   public int Time { get; set; }
}

var list = new List<MyTimeData>();
// Add items to the list
list = list.OrderByDescending(d => d.Time).ToList();

Answer 2

另一个选项，如果 LINQ 不可用或您感兴趣的东西，是SortedList数据结构（您可以反转顺序以使其降序，因为它默认为升序），您可以像这样使用它：

public class MyTimeData {
    public int ID { get; set; }
    public int Time { get; set; }
}

var list = new SortedList<MyTimeData>();

// Add items to sorted list

// Reverse to make it descending
var listDescending = list.Reverse();  

foreach (var item in listDescending)
{
    // Do something with item
}

Answer 3

yourList.OrderByDescending(x => x.Time);