我們有以下產品分類。如何查找多個屬性的最大值
public string Product{ get; set; }
public int? Monday { get; set; }
public int? Tuesday { get; set; }
public int? Wednesday { get; set; }
public int? Thursday { get; set; }
public int? Friday { get; set; }
public int? Saturday { get; set; }
public int? Sunday { get; set; }
public string Zip { get; set; }
該屬性保存一週當天的銷售值。我們需要能夠搜索產品列表,並根據產品的最佳銷售日選擇所有產品的總銷售額。例如:在下面的示例中,產品1的週一銷售額最高,Product2週日的銷售額最高,因此總計應該合併2(5378)。
Product Zip City State Sunday Monday Tuesday Wednesday Thursday Friday
Product 1 63103 Saint Louis MO 0 4728 0 1522 0 0
Product 2 63103 Saint Louis MO 650 419 417 428 599 559
這是我到目前爲止的LINQ代碼。
var temp = report.SelectMany(p => p.SnapshotRecords)
.Where(record => record.Zip == "63103")
.GroupBy(g => new
{
g.Zip,
g.ProductID
})
.Select(s => new SnapshotData()
{
Monday = s.Sum(g => g.Monday),
Tuesday = s.Sum(g => g.Tuesday),
Wednesday = s.Sum(g => g.Wednesday),
Thursday = s.Sum(g => g.Thursday),
Friday = s.Sum(g => g.Friday),
Saturday = s.Sum(g => g.Saturday),
Sunday = s.Sum(g => g.Sunday),
});
爲什麼不使您的生活更輕鬆,有一個'INT [7]'或者甚至一個枚舉? – Sayse
我編輯了你的標題。請參閱:「[應該在其標題中包含」標籤「](http://meta.stackexchange.com/questions/19190/)」,其中的共識是「不,他們不應該」。 –
這真的應該是一個字典''或'' –
xbonez