强制转换为值类型“System.Double”失败，因为物化值为空。结果类型的泛型参数或查询必须使用可为空的类型...

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我是靠谱客的博主独特八宝粥，最近开发中收集的这篇文章主要介绍强制转换为值类型“System.Double”失败，因为物化值为空。结果类型的泛型参数或查询必须使用可为空的类型...，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

  foreach (var item in entityList)
                {
                    ChannelReportDto channelReportDto = new ChannelReportDto();
                    channelReportDto.Id = item.Id;
                    channelReportDto.YueziCenterId = item.YueziCenterId;
                    channelReportDto.YueziCenterName = item.YueziCenterName;
                    channelReportDto.ChannelName = item.ChannelName;
                    channelReportDto.SumProfitAmount = OrderServiceProjectresult.Where(w => w.ChannelId == item.Id && w.IsDeleted == false).Select(s => s.SumProfitAmount).Sum(); 
                    channelReportDto.SettleProfitAmount = OrderServiceProjectresult.Where(w => w.ChannelId == item.Id && w.IsSettlement == true).Select(s => s.SumProfitAmount).Sum();
                    channelReportDto.NoSettleProfitAmount = OrderService