c# – 选择最常访问类别的LINQ查询

我在SQL中编写查询,通过clickCount列选择前12个访问类别

SELECT top(12) c.Name
FROM Category c
GROUP BY c.Name
ORDER BY SUM(ClickCount) DESC

我需要在linq中实现.到目前为止,我写这个但结果不如预期

var query = _categoryRepository.Queryable()
                .GroupBy(r => r.Name)
                .SelectMany(g => g.OrderBy(r => r.ClickCount))
                .Take(12).ToList();

最佳答案 试试这个:

var query = (from item in _categoryRepository.Queryable()
            group item by item.Name into sub
            orderby sub.Sum(x => x.ClickCount) descending
            select sub).Take(12).ToList();
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