摘要： When you define your path const : The symbol "@" means don't need add any escape character for the following string, the url is exactly the same as th 阅读全文

摘要： 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.Diagnostics to your using list): 阅读全文