c# - Entity Framework - 打印 EntityValidationErrors 以记录

Question

打印日志时出现以下错误

Message: Validation failed for one or more entities. See 'EntityValidationErrors'  
property for more details.; Stack Trace:    at 
System.Data.Entity.Internal.InternalContext.SaveChanges()

EntityValidationErrors 对象包含不同节点中的完整详细错误。打印它的最佳方法是什么？

Answer 1

更简洁的语法:

catch (System.Data.Entity.Validation.DbEntityValidationException ex)
{
     Logger.WriteError("{0}{1}Validation errors:{1}{2}", ex, Environment.NewLine, ex.EntityValidationErrors.Select(e => string.Join(Environment.NewLine, e.ValidationErrors.Select(v => string.Format("{0} - {1}", v.PropertyName, v.ErrorMessage)))));
     throw;
}