modelstate

When testing my controller's actions the ModelState is always valid. public class Product { public int Id { get; set; } [Required] [StringLength(10)] public string Name { get; set; } [Required] public string Description { get; set; } [Required] public decimal Price { get; set; } } And my controller. public class ProductController : Controller { [HttpPost] public ActionResult Create(Product product) { if (ModelState.IsValid) { // Do some creating logic... return RedirectToAction("Display"); } return View(product); } } And test: [Test] public TestInvalidProduct() { var product = new Product();

How can I display ModelState errors returned by JSON? I want to do something like this: if (!ValidateLogOn(Name, currentPassword)) { ModelState.AddModelError("_FORM", "Username or password is incorrect."); //Return a json object to the javascript return Json(new { ModelState }); } What must be my code in the view to read the ModelState errors and display them? My actual code in the view to read the JSON values is as follows: function createCategoryComplete(e) { var obj = e.get_object(); alert(obj.Values); } If you are returning JSON, you cannot use ModelState. Everything that the view needs

Im working on a big MVC3 web application and have an annoyance regarding the ModelState.IsValid method. ModelState is being used in nearly all of my controllers so to validate the data being posted. The views are all based on ViewModels which contain different classes and these classes obviously contain properties which could be marked as [Required] . The problem i am having is the required properties are sometimes not required and im having to use the ModelState.Remove method so that ModelState.IsValid becomes true. My question is by using ModelState.Remove , is this the correct way of doing

I've got a situation where I'm uploading an image the user has selected from his local file system. My Form in my view, basically has two submit buttons. One is used to Submit the form normally, and all validation executes. The 2nd is only for uploading the image, in which case I don't want to validate yet. I managed to turn off Client Side validation by giving my 'Upload Image' submit button an a class value of "style-name cancel" , so <input type="submit" name="UploadImageButton" value="Upload Image" class="style-name cancel" /> Now, when I post back, my model has a property

How do you get a list of all ModelState error messages? I found this code to get all the keys: ( Returning a list of keys with ModelState errors ) var errorKeys = (from item in ModelState where item.Value.Errors.Any() select item.Key).ToList(); But how would I get the error messages as a IList or IQueryable? I could go: foreach (var key in errorKeys) { string msg = ModelState[error].Errors[0].ErrorMessage; errorList.Add(msg); } But thats doing it manually - surely there is a way to do it using LINQ? The .ErrorMessage property is so far down the chain that I don't know how to write the LINQ...

I am checking my database in Create(FooViewModel fvm){...} to see if the fvm.prop1 and fvm.prop2 already exist in that combination; if so, I want to add an error to the modelstate, then return the whole view. I tried: public ActionResult Create(FooViewModel fvm){ if (ThatComboAlreadyExists(fvm)) { ModelState.AddModelError("Model", "There is already one like that"); return View(fvm); } } ...but I get no display of errors in the Html.ValidationSummary , which is where I assume they would appear. I have the suspicion that "Model" is not the right key, but I haven't been able to find anything a la