Question

我的数据格式如下：

(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：日期=日期，人=字符串，小时=整数

使用LINQ我想选择这种格式：

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

数据类型：日期=日期，山姆=整数，莎莉=整数

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，然后只是格式化以便正确显示。

Answer 2

据我了解，您有一张表格，记录每位员工在特定数据中工作的小时数。我假设它可以包含一天中一个人的多个日志。如果您不想使用LINQ，可以使用此

var hours = new[] {
                        new { Date = "21/04/2008", Person = "Sally", Hours= 3 },
                        new { Date = "21/04/2008", Person = "Sam", Hours = 15 },
                        new { Date = "22/04/2008", Person = "Sam", Hours = 8 },
                        new { Date = "22/04/2008", Person = "Sally", Hours = 9 },
                        new { Date = "22/04/2008", Person = "John", Hours = 5 },
                        new { Date = "22/04/2008", Person = "John", Hours = 2 },
                        new { Date = "22/04/2008", Person = "Tom", Hours = 9 },
                   };


var result = new Dictionary<string, Dictionary<string, int>>();
foreach (var workLog in hours)
{
    if (!result.ContainsKey(workLog.Date))
        result[workLog.Date] = new Dictionary<string, int>();

    if (!result[workLog.Date].ContainsKey(workLog.Person))
        result[workLog.Date][workLog.Person] = 0;

    result[workLog.Date][workLog.Person] += workLog.Hours;
}

Console.WriteLine(JsonConvert.SerializeObject(result));

，结果是

{＆＃34; 21/04/2008＆＃34; {＆＃34;萨利＆＃34;：3，＆＃34;萨姆＆＃34;：15}＆＃34; 22/04/2008＆＃34; {＆＃34;萨姆＆＃34;：8，＆＃34;萨利＆＃34;：9，＆＃34;约翰＆＃34;：7，＆＃34;汤姆＆＃34;：9}}

使用Linq重新排列表数据

2 个答案: