I've got a ViewModel for adding a user with properties: Email, Password, ConfirmPassword with Required attribute on all properties. When editing a user I want the Password and ConfirmPassword properties not to be required.
Is there a way to disable validation for certain properties in different controller actions, or is it just best to create a seperate EditViewModel?
I like to break it down and make a base model with all the common data and inhierit for each view:
class UserBaseModel
{
int ID { get; set; }
[Required]
string Name { get; set; }
[Required]
string Email { get; set; }
// etc...
}
class UserNewModel : UserBaseModel
{
[Required]
string Password { get; set; }
[Required]
string ConfirmPassword { get; set; }
}
class UserEditModel : UserBaseModel
{
string Password { get; set; }
string ConfirmPassword { get; set; }
}
Interested to know if there is a better way as well although this way seems very clean an flexible.
You could write a custom attribute that can test a condition and either allow an empty field or not allow it.
The below is a simple demo i put together for the guys here. You'll need to modify to suit your purposes/
using System.ComponentModel.DataAnnotations;
namespace CustomAttributes
{
[System.AttributeUsage(System.AttributeTargets.Property)]
public class MinimumLength : ValidationAttribute
{
public int Length { get; set; }
public MinimumLength()
{
}
public override bool IsValid(object obj)
{
string value = (string)obj;
if (string.IsNullOrEmpty(value)) return false;
if (value.Length < this.Length)
return false;
else
return true;
}
}
}
Model;
using CustomAttributes;
namespace Models
{
public class Application
{
[MinimumLength(Length=20)]
public string name { get; set; }
}
}
Controller
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Index(Application b)
{
ViewData["Message"] = "Welcome to ASP.NET MVC!";
if (ModelState.IsValid)
{
return RedirectToAction("MyOtherAction");
}
return View(b);
}
enter code here
