data-annotations

I know on the Razor View file, we can do something like this @Html.TextBox("username", null, new { maxlength = 20, autocomplete = "off" }) However, I am hoping to create a model for the MVC that can be used to create a form with explicitly defined the size and max length of the textboxes. I try [StringLength(n)] on top of the properties of the model, but that seems to only do the validation ratherh set the size of the textbox. Is there anyway that we can define the length of the text field as a data annotation on top of a property of a model? So ultimately, we could just create the whole form

I want to utilize Validator.TryValidateValue() but don't understand the mechanics. Say, i have the following: public class User { [Required(AllowEmptyStrings = false)] [StringLength(6)] public string Name { get; set; } } and the method: public void CreateUser(string name) {...} My validation code is: ValidationAttribute[] attrs = bit of reflection here to populate from User class var ctx = new ValidationContext(name, null, null); var errors = new List<ValidationResult>(); bool valid = Validator.TryValidateValue(name, ctx, errors, attrs); It works fine until value of name is null . I'm getting

I'm using CodeFirst Entitty framework 5. I have a class representing a user. public class User { [Key] public int UserId { get; set; } [Url] [DataType(DataType.Url)] [Required(AllowEmptyStrings= true)] public string WebSite { get; set; } [Phone] [DataType(DataType.PhoneNumber)] [Required(AllowEmptyStrings = true)] public string Phone { get; set; } [Phone] [DataType(DataType.PhoneNumber)] [Required(AllowEmptyStrings = true)] public string Fax { get; set; } } I like the validation mechanics for Phone and Url attributes a lot, but unfortunately validation fails when fields marked with these

This is a very specific issue. I managed to automatically add the placeholder attribute to html5 email input type by using an editor template called EmailAddress.cshtml , saved in ~/Views/Shared/EditorTemplates/ folder. See the code below: @Html.TextBox("", ViewData.TemplateInfo.FormattedModelValue, new { @class = "text-box single-line", placeholder = ViewData.ModelMetadata.Watermark }) It works because i'm using the [DataType(DataType.EmailAddress)] DataAnnotation in my view model. What doesn't works is when I use a int? variable. public class MiageQuotaRequestViewModel { [Required] [DataType

I have a Car class that I'm trying to display in an MVC 3 view using the WebGrid helper. Below are the Car and it's metadata class. Car class: [MetadataType(typeof(CarMetadata))] public partial class Car { // car implementation } Car metadata class: public class CarMetadata { [DisplayName("Car Name")] [StringLength(100, ErrorMessageResourceType = typeof(ValidationText), ErrorMessageResourceName="CarNameDescriptionLength")] [Required] public string CarName { get; set; } } View contents: @model List<Car> ... var grid = new WebGrid(Model, canPage: true, rowsPerPage: 10); grid.Pager

I am using jquery for client side validation together with data annotations. Everything is working fine but I would like to localize a message when a non numeric value is entered in numeric textbox. For server side validation it can be done by setting DefaultModelBinder.ResourceClassKey to resource class name and providing value for PropertyValueInvalid key. However for client side validation asp.net mvc is using it's own resource file with key 'ClientDataTypeModelValidatorProvider_FieldMustBeNumeric'. The only way to solve it that I found is described at Custom Server and Client Side Required