CODEWITHSUNDEEP
c#asp.net-mvc
Awais Mahmood
Awais Mahmood

Reputation: 1336

How to use remote and compare attributes in one method in MVC

I am developing an MVC 5 application and using the built in AccountController methods for User Registrations. I have added a User Name property in RegisterViewModel since I needed that. Now I want to add Remote Validation on User Name property to prompt the user immediately if the user name is repeating.

But when I tried Remote Validation and added System.Web.Mvc reference, the Compare attribute for Password and Confirm Password started giving error.

I went through some study online and got that System.Web.Mvc has also got a Compare method and adding a reference to this class confused the compiler about Compare method.

My RegisterViewModel is:

public class RegisterViewModel
    {
        [Required]
        [EmailAddress]
        [Display(Name = "Email")]
        public string Email { get; set; }


        [Required]
        [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)]
        [DataType(DataType.Password)]
        [Display(Name = "Password")]
        public string Password { get; set; }

        [DataType(DataType.Password)]
        [Display(Name = "Confirm password")]
        [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
        public string ConfirmPassword { get; set; }

        [Required]
        [Display(Name = "User Name")]
        [RegularExpression(@"(\S)+", ErrorMessage = "White space is not allowed.")]
        [Remote("DuplicateUserName", "Account", ErrorMessage = "UserName already exists.")]
        public string UserName { get; set; }

    }

The error it gave is:

'CompareAttribute' is an ambiguous reference between 'System.ComponentModel.DataAnnotations.CompareAttribute' and 'System.Web.Mvc.CompareAttribute'

Now I cannot delete the reference to using System.ComponentModel.DataAnnotations class because I am using Required and Display attributes of that class. But I also want to add Remote Validation. How can I do it?

Upvotes: 2

Views: 1024

Answers (2)

Niels Van Looy
Niels Van Looy

Reputation: 66

Add the full namespace to the attrubute

[System.ComponentModel.DataAnnotations.Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
public string ConfirmPassword { get; set; }

Alternatively you can add an alias to your usings

using Remote = System.Web.Mvc.RemoteAttribute;

Upvotes: 2

Oliver
Oliver

Reputation: 11597

You can give the full path to the attribute, for instance:

[System.Web.Mvc.Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
public string ConfirmPassword { get; set; }

Upvotes: 2

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