Question

如何按月而不是按字母顺序排序此查询？我的数据库中有两列。一个代表月份名称，另一个代表月份编号。

现在，它按字母顺序订购了几个月。

var querythpmsick = (from r in db.SickLeaveRequestForms
                            where r.EmployeeID == id
                             group r by r.MonthOfHoliday into g
                            select new { Value = g.Key, Count1 = g.Sum(h => h.SickLeaveTaken) }
                           ).OrderBy(e => e.Value);

Answer 1

如果您的数据库中同时包含月份名称和月份编号，则只需按数字而不是月份名称进行分组：

var querythpmsick = (from r in db.SickLeaveRequestForms where r.EmployeeID == 2
                            group r by r.MonthOfHolidayInt into g
                            select new { Value = g.Key, Count1 = g.Sum(h => h.SickLeaveTaken), MonthName = g.Select(d => d.MonthOfHoliday) })
                                     .OrderBy(e => e.Value);

以下是一个DotNetFiddle，示例：https://dotnetfiddle.net/6vE4lo

按月名称的LINQ查询顺序非字母顺序

1 个答案: