Hi all,

I have a controller named UserManagement. It has two methods: AddUser and EditUser.

AddUser and EditUser is very similar except only the user name validation.

This should be the user name description in AddUser operation:

[DisplayName("User Name")]
        [Remote("ValidateUserName", "UserMgr", ErrorMessage = "The user name is already existing.")]
        [RegularExpression(Verifier.REG_EXP_USER_NAME, ErrorMessage = Verifier.ERRMSG_REG_EXP_USER_NAME)]
        public string UserName { get; set; }

And this should be the description in EditUser operation:

        [DisplayName("User Name")]
        [Required(ErrorMessage = Verifier.ERRMSG_REQUIRED)]
        [RegularExpression(Verifier.REG_EXP_USER_NAME, ErrorMessage = Verifier.ERRMSG_REG_EXP_USER_NAME)]
        public string UserName { get; set; }

In AddUser operation, I use the Remote validation to ensure the user name is not in used in the server side, while that's unnecessary in EditUser operation.

To accomplish that, I created two models, two views. Of course, it works. But it has too many repeated code. It breaks DRY.

How could I do? Any ideas?

Thanks.