Question

我想获得Stored Procedure查询

var labratorySerialFinalResult = repository.UoW.Orm.Database.SqlQuery<SPLabratorySerialFinalResult>("EXECUTE LabratorySerialFinalResult @OrderNo='" + project.OrderNumber + "'")

并使用如下结果：

 var result = projSerials.Where(x =>!labratorySerialFinalResult.Any(v => v.SerialNo == x.SerialNo)
.Union(labratorySerialFinalResult.Where(c => c.FinalResult == "Reject");

但是我遇到以下异常：

Unable to create a constant value of type SPLabratorySerialFinalResult Only primitive types or enumeration types are supported in this context.

Answer 1

var labratorySerialFinalResult = repository.UoW.Orm.Database.SqlQuery<SPLabratorySerialFinalResult>("EXECUTE LabratorySerialFinalResult @OrderNo='" + project.OrderNumber + "'").AsEnumerable();

var result = projSerials.AsEnumerable().Where(x =>!labratorySerialFinalResult.Any(v => v.SerialNo == x.SerialNo)
          .Union(labratorySerialFinalResult.Where(c => c.FinalResult == "Reject");

Referencing Non-Scalar Variables Not Supported

在查询中引用非标量变量（例如实体）不支持。执行此类查询时，会出现NotSupportedException 抛出异常，并显示一条消息，指出“无法创建一个 EntityType类型的常量值。只有原始类型（'如在此上下文中支持Int32，String和Guid'。“

在Code First中重用linq到sql的存储过程结果

1 个答案: