data-annotations

How is the best way to validate a model in MVC.Net where I want to accept a minimum/maximum. Not individual min/max values for a field. But separate fields for a user to specify a minimum/maximum. public class FinanceModel{ public int MinimumCost {get;set;} public int MaximumCost {get;set;} } So I need to ensure that MinimumCost is always less than Maximum cost. You can use a custom validation attribute here is my example with dates. But you can use it with ints too. First, here is the model : public DateTime Beggining { get; set; } [IsDateAfterAttribute("Beggining", true,

I've been using the new ASP.Net MVC 3 RemoteAttribute to send a remote call to an action method that had a single parameter. Now I want to pass in a second parameter using the AdditionalFields property: [Remote("IsEmailAvailable", "Users", AdditionalFields = "InitialEmail")] Where IntialEmail is a hidden field in the view. The action looks like so: public JsonResult IsEmailAvailable( string email, string InitialEmail) { //etc. } When the view is rendered, the hidden field is populated, but when the Action method is triggered remotely, the value is an empty string. I've seen elsewhere case

Description My solution has these projects: DAL = Modified Entity Framework DTO = Data Transfer objects that are able to validate themselves BL = Business Layer Services WEB = presentation Asp.net MVC application DAL, BL and WEB all reference DTO which is great. The process usually executes this way: A web request is made to the WEB WEB gets DTOs posted DTOs get automagically validated via custom ActionFilter validation errors are auto-collected (Validation is OK) WEB calls into BL providing DTOs BL calls into DAL by using DTOs (can either pass them through or just use them) DTO Validation

I have this attribute in my view model: [DataType(DataType.DateTime)] public DateTime? StartDate { get; set; } If I want to display the date, or populate a textbox with the date, I have these: <%: Model.StartDate %> <%: Html.TextBoxFor(m => m.StartDate) %> Whenever the date is displayed, it's displayed like: 01/01/2011 12:00:00 AM But I'd like to only display 01/01/2011 Is there a way to apply a display format with data annotations? I don't want to have to go to every instance where I display a date, and add some code to format it. Try tagging it with: [DisplayFormat(ApplyFormatInEditMode =

Can I automatically validate complex child objects when validating a parent object and include the results in the populated ICollection<ValidationResult> ? If I run the following code: using System; using System.Collections.Generic; using System.ComponentModel.DataAnnotations; namespace ConsoleApplication1 { public class Person { [Required] public string Name { get; set; } public Address Address { get; set; } } public class Address { [Required] public string Street { get; set; } [Required] public string City { get; set; } [Required] public string State { get; set; } } class Program { static