Asp.Net CONCAT表，使他们通过正确排序C＃LINQ

Question

我想提出一个观点，即通过一种列显示表的顺序：

VIEW：

@*<a href="@Url.Action("Index", new { filtro = "plantacao comeca", ordem 
= "desc"})"><span class="glyphicon glyphicon-plus-sign"></span></a> 
     <a href="@Url.Action("Index", new { filtro = "plantacao comeca", ordem = "asc"})"><span class="glyphicon glyphicon-minus-sign"></span></a>*@ 

控制器：

case "plantacao comeca": 
    var january = artigo.Where(a => a.plantacaoComeca == "January"); 
    var february = artigo.Where(a => a.plantacaoComeca == "February"); 

    // and so on and so one 
    // I whant to contact this tables in order where !!! 
    break; 

所以我想知道如何搭配这张桌子，或者用不同的字符串或数字来排列它们，或者是以往的.....

Answer 1

将月份的字符串表示形式转换为DateTime，然后OrderBy它。最后，因为新SortValue是不相关的输出我添加了一个select

var sortedByMonths = artigo 
    .Select(item => new { Item = item, SortValue = DateTime.ParseExact(item.plantacaoComeca , "MMMM", CultureInfo.InvariantCulture) }) 
    .OrderBy(item => item.SortValue) 
    .Select(item => item.Item) 
    .ToList(); 

您还可以使用Where和Concat（但我认为这是过去那么好）：

var january = artigo.Where(a => a.plantacaoComeca == "January"); 
var february = artigo.Where(a => a.plantacaoComeca == "February"); 

january.Concat(february).Concat(....) 

Answer 2

把Where合并成一个查询有什么问题？

var januaryFebruary = artigo.Where(
    a => a.plantacaoComeca == "January" 
     || a.plantacaoComeca == "February");