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Question

嗨，我编写了一个代码，以获取具有匿名数据类型的列表，如下所示

var AvgPriceList = x.GroupBy(y => y.Retailer).Select(k => 
  new { Retailer = k.Key, 
        AvgUnitPrice = k.Sum(z => z.Units) == 0 ? 0 : (double)k.Sum(z => z.Dollars) / k.Sum(z => z.Units)
     }), 
    AvgUnitPrice = x.Sum(y => y.Units) == 0 ? 0 : (double)x.Sum(y => y.Dollars) / x.Sum(y => y.Units), 
    EDLP_Price = x.FirstOrDefault().EDLPPrice, Units = x.Sum(y => y.Units), USBEDLP = x.Sum(y => y.USBEDLP) });

Answer 1

我已经通过向内部匿名类添加额外的属性来解决我的问题，如下所示

     AvgPriceList = x.GroupBy(y => y.Retailer).Select(k => 
                                                          new { Retailer = k.Key, 
                                                                AvgUnitPrice = k.Sum(z => z.Units) == 0 ? 0 : (double)k.Sum(z => z.Dollars) / k.Sum(z => z.Units),
                                                                AvgUnits = k.Sum(z => z.Units)
                                                             }), 
            AvgUnitPrice = x.Sum(y => y.Units) == 0 ? 0 : (double)x.Sum(y => y.Dollars) / x.Sum(y => y.Units), 
            EDLP_Price = x.FirstOrDefault().EDLPPrice, Units = x.Sum(y => y.Units), USBEDLP = x.Sum(y => y.USBEDLP) });