linq如何订购此声明

Question

如您所见，我试图在声明结尾处执行多个order by语句。我的结果没有回复正确。

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

如果您要链接多个OrderBy()个查询，则需要使用ThenBy()和ThenByDescending()作为后续属性，以便按正确的顺序应用它们：

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

Answer 2

使用ThenByDescending方法按降序应用二级排序。

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