ModelState is coming up as invalid?
问题 I'm working on a MVC5 Code-First application. On one Model's Edit() view I have included [Create] buttons to add new values to other models from within the Edit() view and then repopulate the new value within DropDownFors() on the Edit() . For this first attempt, I am passing a model_description via AJAX to my controller method createNewModel() : [HttpPost] public JsonResult createNewModel(INV_Models model) { // model.model_description is passed in via AJAX -- Ex. 411 model.created_date =