c# - 使用 Linq 重新排列表数据

Question

我有以下格式的数据:

(Table: Hours)
{ Date = "21/04/2008", Person = Sally, Hours= 3 }
{ Date = "21/04/2008", Person = Sam, Hours = 15 }
{ Date = "22/04/2008", Person = Sam, Hours = 8 }
{ Date = "22/04/2008", Person = Sally, Hours = 9 }

数据类型:Date = Date，Person = String，Hours = Integer

使用 LINQ 我想将其选择成这种格式:

{ Date = "21/04/2008", Sam = 15, Sally = 3 }
{ Date = "22/04/2008", Sam = 8, Sally = 9 }

数据类型:Date = Date，Sam = Integer，Sally = Integer

这可能吗？

Answer 1

from d in data
group d by d.Date into g
select new {Date = g.Key, People = g.Select(gg=>new{Person = gg.Person, Hours = gg.Hours})}

这将为您提供数据，然后只是格式化以正确显示。