标签：linq and not var res cin 问题 中间 members
The specified type member ‘DeleteFlag‘ is not supported in LINQ to Entities. Only initializers, entity members, and entity navigation properties are supported.
出现这个问题的原因是因为在linq中两个连接表创建的实体类需要吧其中的映射字段每一个都查出来，不然就会报这个错误，错误的写法如下
var querySql = from t in _observationResultRepository.Table join r in _observationRequestRepository.Table on t.ObservationUID equals r.ObservationUID select new RelatedLabResultInfo { ValueText=t.ValueText, ResultDate=r.ResultDate }; if (query.ClinicInfoType != null) { querySql = querySql.Where(u => u.ClinicInfoType == query.ClinicInfoType.Value.ToString()); }
这其中，tostringEF 不支持，需要写个中间变量赋值然后再放在EF中，
正确的写法：
var querySql = from t in _observationResultRepository.Table join r in _observationRequestRepository.Table on t.ObservationUID equals r.ObservationUID select new RelatedLabResultInfo { ValueText=t.ValueText, ResultDate=r.ResultDate, ClinicInfoType=r.ClinicInfoType }; if (query.ClinicInfoType != null) { ClinicInfoType = query.ClinicInfoType.Value.ToString(); } if (query.ClinicInfoType != null) { querySql = querySql.Where(u => u.ClinicInfoType == ClinicInfoType); }
指定类型的成员XX”不支持实体LINQ。只有初始化，成员单位，和实体导航性能的支持。
标签：linq and not var res cin 问题 中间 members
原文地址：http://www.cnblogs.com/llcdbk/p/6979623.html
