Question

请指导，我可以使用Dynamic Group，但是当选择非灌溉字段时，我会收到以下错误

'IGrouping`2'

类型中不存在属性或字段'name'

var result311 = (IQueryable)gle1.temptable.Where(a => a.IsAllowed == false && a.Code == "r01");

            var result = result311.GroupBy("new (name, FirstAmountOriginal, SecondAccounting)", "it")
                .Select("new (it.name,Sum(FirstAmountOriginal) as FirstAmountOriginalx, Sum(SecondAccounting) as SecondAccountingx)");

请指导

Answer 1

首先，您不应按要聚合的字段进行分组;其次，分组会创建一个分组Key，其中包含您分组的字段（在本例中为一个字段），因此您必须先处理此密钥：

var result = result311.GroupBy("new(name)", "it")
    .Select(@"new (it.Key.name,
                   Sum(FirstAmountOriginal) as FirstAmountOriginalx, 
                   Sum(SecondAccounting) as SecondAccountingx)");

动态Linq GroupBy选择无法正常工作

1 个答案: