linq 我将如何订购此声明

Question

如您所见，我正在尝试在语句末尾执行多个 order by 语句。我的结果不正确。

var query = 
    (from x in workloadDetail
    group x by new { x.titleOrder, x.httitle } into sortedData                        
    select new WorkloadSummary()
    {
    httitle = sortedData.Key.httitle,
    totalHrs = sortedData.Sum(x => x.totalHrs),
    totalDol = sortedData.Sum(x => x.totalDol),
    titleOrder = sortedData.Key.titleOrder
    }).OrderBy(x => x.httitle).OrderByDescending(x => x.totalHrs);

Answer 1

使用ThenByDescending方法按降序应用二次排序。

.OrderBy(x => x.httitle).ThenByDescending(x => x.totalHrs);

Answer 2

如果您要链接多个 OrderBy() 查询，您需要使用 ThenBy() 和 ThenByDescending() 来获取后续属性，以便它们以正确的顺序应用：

.OrderBy(x => x.httitle).ThenByDescending(x => x.totalHrs);

linq 我将如何订购此声明

linq how would i order this statement

c#

linq

linq-to-sql