سلام..
من از code first استفاده میکنم.یکی از مدلهامو وقتی به فیلدهاش [Required(ErrorMessageResourceName = "Required", ErrorMessageResourceType = typeof(Resources))] رو نسبت می دم ، این خطا رو میده:
کسی میدونه دلیلش چیه؟
One or more validation errors were detected during model generation:
WebSite.Models.MultiString: : EntityType 'MultiString' has no key defined. Define the key for this EntityType.
MultiStrings: EntityType: EntitySet 'MultiStrings' is based on type 'MultiString' that has no keys defined.