將列轉置爲行並將日期行轉換爲列

這是一個ASP.NET MVC項目。目前，我有一個表，如：將列轉置爲行並將日期行轉換爲列

Skill   Date  Offered  Answered Abandoned 
SampleSkill1 12/1/2013 53585  52549  1036 
SampleSkill2 12/1/2013 7170  6997  173 
SampleSkill1 11/1/2013 45635  45189  446 
SampleSkill2 11/1/2013 6481  6378  103 
SampleSkill1 10/1/2013 54838  54208  630 
SampleSkill2 10/1/2013 7361  7235  126

我試圖獲取數據表中的一樣：

SampleSkill1

Type  Oct  Nov  Dec 
Offered  53585 52549 1036 
Answered 45635 45189 446 
Abandoned 54838 54208 630

我已經能夠獲得最接近的是做這樣的事情這個：

var StatsList = db.Stats.Where(c => c.Skill == "SampleSkill1").ToList(); 
var OfferedStatsQuery = StatsList 
    .GroupBy(c => c.Skill) 
    .Select(g => new StatsPivot { 
     Skill = g.Key, 
     Oct = g.Where(c => c.Date.Month == 10).Sum(c => c.Offered), 
     Nov = g.Where(c => c.Date.Month == 11).Sum(c => c.Offered), 
     Dec = g.Where(c => c.Date.Month == 12).Sum(c => c.Offered) 
    }); 
var AnsweredStatsQuery = StatsList 
    .GroupBy(c => c.Skill) 
    .Select(g => new StatsPivot { 
     Skill = g.Key, 
     Oct = g.Where(c => c.Date.Month == 10).Sum(c => c.Answered), 
     Nov = g.Where(c => c.Date.Month == 11).Sum(c => c.Answered), 
     Dec = g.Where(c => c.Date.Month == 12).Sum(c => c.Answered) 
    });

我相信這不是做這種事情的最好/正確的方法，但我我對LINQ很陌生。有關如何有效實現預期結果的任何建議？

來源

2014-02-06 user2093254