Entity Framework插入数据报错：Validation failed for one or more entities

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Entity Framework插入数据报错：Validation failed for one or more entities

www.111cn.net 编辑:lanve 来源:转载今天在处理Entity Framework插入数据库时,报错: Validation failed for one or more entities. See 'EntityValidationErrors' property for more details. 一直我一直用Exception ex,这个通用异常处理,一点都差不多哪里出错了.对照实体model和数据库表也都没有一点问题(EF刚开始用,以前都是同事给写好了,我只做前端):…

Entity Framework插入数据报错：Validation failed for one or more entities. See 'EntityValidationErrors' property for more details.

stackoverflow的解决方法 try { db.Entity.Add(entity); db.SaveChanges(); } catch (DbEntityValidationException dbEx) { foreach (var validationErrors in dbEx.EntityValidationErrors) { foreach (var validationError in validationErrors.ValidationErrors) { System…

vs报错找不到错在哪里！Validation failed for one or more entities

今天在处理Entity Framework修改数据库时,报错: Validation failed for one or more entities. See 'EntityValidationErrors' property for more details. 实在是找不到原因一般的错误用的是try catch(Exception ex) 来看错误,但是这种情况找不到错误. 改用了一种System.Data.Entity.Validation.DbEntityValidationExcept…

EF中，保存实体报错：Validation failed for one or more entities. 如何知道具体错误在哪？

异常提示:Validation failed for one or more entities. See 'EntityValidationErrors' property for more details. 出现此异常的时候,我们知道是实体的赋值导致程序抛出异常,可是不知道是实体的哪个字段赋值导致. 尤其是在使用了EF的自动监测实体改变的保存之后. 如何根据爆出的异常对象,得到多的我们需要的信息呢? 1.调试程序.打断点. 2.走到抛出异常的地方 3.选中“ex”或随便选中什么,右键-快速监视…

“Validation failed for one or more entities”异常的解决办法

日志中出现Entity Framework修改数据库时的错误: Validation failed for one or more entities. See 'EntityValidationErrors' property for more details. 从表面看不出来哪里错了,增加以下try...catch代码,捕获异常: try { // 数据库操作 } catch (DbEntityValidationException ex) { } 最终在ex.EntityValidation…

Validation failed for one or more entities. See ‘EntityValidationErrors’解决方法

Validation failed for one or more entities. See ‘EntityValidationErrors’解决方法 You can extract all the information from the DbEntityValidationException with the following code (you need to add the namespaces: System.Data.Entity.Validation and System.Di…