linq排序之 根据文本 A-001-002-003 这种类型进行分割排序 空值放于最后

调用

   List<string> data = new List<string>() {
                 "D-001-001-001","A-001-004-001","A-001-002-001",
                 "A-002-001-001", "F-004-001-001", "A-003-001-001",
                 "A-004-001-004","A-041-0401-031","" };
             var gf = (from e in data select e).OrderBy(x => x, new AlphaNumericComparer()).ToList();

比较器

   public class AlphaNumericComparer : IComparer<string>
     {
         public int Compare(string first, string second)
         {
              int firstNumber, secondNumber;//定义数值类型返回值
             if (string.IsNullOrEmpty(first)&& string.IsNullOrEmpty(second))
             {
                 return ;
             }
             if (string.IsNullOrEmpty(first) && !string.IsNullOrEmpty(second))
             {
                 return ;
             }
             if (!string.IsNullOrEmpty(first) && string.IsNullOrEmpty(second))
             {
                 return -;
             }
             //分割字符串
             string[] firstArray = first.Split('-');
             string[] secondArray = second.Split('-');
             List<int> intArray = new List<int>();
             //记录比较结果
             for (int i = ; i < firstArray.Length; i++)
             {
                 bool firstIsNumber = int.TryParse(firstArray[i], out firstNumber);
                 bool secondIsNumber = int.TryParse(secondArray[i], out secondNumber);
                 if (firstIsNumber && secondIsNumber)
                 {
                     //数字比较
                     intArray.Add(firstNumber.CompareTo(secondNumber));
                 }
                 else {
                     //文本比较
                     intArray.Add(firstArray[i].CompareTo(secondArray[i]));
                 }
             }
             intArray.Reverse();//从末位开始计算差值
             int val = ;
             //获取差值占比
             for (int i = ; i < intArray.Count; i++)
             {
                 val += intArray[i] * (i+) * ;
             }
             return val;
         }
     }

效果图: