modelstate

I am working in an ASP.NET MVC Application. I have a view model as follows: public class SampleInterestViewModel { //Properties defined //One such property that shows an error in ModelState is as follows public DateTime? SampleDate { get; set; } } From UI Perspective user can enter date as mmddyyyy. And when user enters in such format say 01012001, my ModelState.IsValid code piece in controller returns false. When I did a quick watch in ModelState, I see an error for the propery "SampleDate", saying "The Value 01012001 is not valid for SampleDate". In my modelbinder, during the OnModelUpdated

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 = DateTime.Now; model.created_by = System.Environment.UserName; model.modified_date = DateTime.Now; model

I always use ModelState.IsValid for check all of my model validation validated correctly in Server Side, but I think there is a limitation to use this. For example I define a Remote Validation attribute, but if I disable javascript then ModelState.IsValid don't check Remote Validation and always return true, Where is the problem? this is a limitation for ModelState.IsValid or is my fault? If necessary I can Add all my implementation. Styxxy This question has come around a few times. The answer is: it doesn't validate on the server-side, you have to perform the validation action yourself. See

When MVC runs an ActionMethod it will populate the ModelState dictionary and uses a ModelBinder to build the ActionMethod parameter(s) if any. It does this for both GET and POST . Which makes sense. After the ActionMethod successfully has been ran, the view is rendered using the razor supplied, which in my case uses as much HtmlHelper calls as possible. Until now, you might think, 'Yes I know how MVC works'. Hold on, I'm getting there. When we use e.g. @Html.TextFor(m => m.Name) MVC uses the code that can be here to render the tag. The interesting part is at the end of the file where we find:

I've been looking around and I think my solution is just fine but somehow the ModelState.IsValid property is always true . Consider the following code snippets: [Route("address")] [HttpPut] [ResponseType(typeof(UserViewModel))] public IHttpActionResult UpdateAddress([FromBody] UpdateAdressValidationModel model) { if (!ModelState.IsValid) { return BadRequest(ModelState); } // irrelevant code omitted } [TestMethod] public void UpdateAddress_WithoutStreet_ReturnsHttpCode400() { var userController = new UserController(new UserRepository(_context)); var addressInfo = new UpdateAdressValidationModel

Most of my action methods return PartialViews on success and RedirectToAction results on failure. For that, I would like to copy the model state errors into TempData so I could display them to the user. I've read several questions here on SO and some external links but none of them worked for me... I'm decorating the ActionMethod with ModelStateToTempData attribute from MvcContrib, then displaying it as follows in the view: (this is just a prototype) @if (TempData.Count > 0) { foreach (var obj in TempData) { var errors = ((ModelStateDictionary)obj.Value).Values; foreach (var error in errors) {