C# 如何将此SQL Order By语句转换为LINQ to对象？

这是SQL ORDER BY：

order by case when [order] is null then 1 else 0 end, [order]

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如何在LINQ to Object语句中写入它？

方法语法

var query = enumerable.OrderBy(x => x.order == null ? 1 : 0).ThenBy(x => x.order);

var query = from x in enumerable
            orderby (x.order == null ? 1 : 0), x.order
            select x;

查询语法

var query = enumerable.OrderBy(x => x.order == null ? 1 : 0).ThenBy(x => x.order);

var query = from x in enumerable
            orderby (x.order == null ? 1 : 0), x.order
            select x;

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假设order是一个可为空的值（不是对象），您应该能够使用：

orderby null == order ? 1 : 0, order

如果它是一个对象，您可以尝试

orderby null == order ? 1 : 0, order.PropertyName