Question

In the below code I cannot pass the username to the remote validation function:

public string UserName { get; set; }

public class Numbers
{


            [Display(Name = "Additonal Numbers")]
            [Remote("NumberExists", "Account", AdditionalFields = "UserName", ErrorMessage = "Serial is already taken.")]
            public string additionalNumbers { get; set; }
 }


public List<Numbers> NumberList { get; set; }

This is a simple example but I would like to pass additional fields from the same model within a list but I cant seem to access anything outside the scope of the public class.

Do I need to pass the rest of the model into the list in some way to achieve this or am I doing something wrong here?

Answer 1

The AdditionalFields parameter in the remote validation attribute need to be in the same class as the object being validated.

..edit..

public class Numbers
{

            public string UserName { get; set; }

            [Display(Name = "Additonal Numbers")]
            [Remote("NumberExists", "Account", AdditionalFields = "UserName", ErrorMessage = "Serial is already taken.")]
            public string additionalNumbers { get; set; }
 }

..edit after comments..
It looks like what you want to do is validate that all the numbers are unique for a Username. Try this:

public string UserName { get; set; }

[Display(Name = "Additonal Numbers")]
[Remote("NumberExists", "Account", AdditionalFields = "UserName", ErrorMessage = "Serial is already taken.")]
public List<String> NumberList { get; set; }

In your NumberExists Action take a List of Strings rather than only 1 string. This will let you validate your whole array all at once.

Public ActionResult NumberExists(List<String> NumberList, String UserName){
    //Validate list is unique for username
}