public class RegisterViewModel
{
[Required]
[EmailAddress]
[Display(Name = "Email")]
public string Email { get; set; }
[Required]
[StringLength(100,
ErrorMessage = "The {0} must be at least {2} and at max {1} 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; }
}
A pattern used by the Visual Studio team creates a set of simple classes with no complex types that consist of nothing but public properties and data annotations. To see an example of this pattern, create a new ASP.NET Core Web Application project using the Web Application template and change the authentication type to individual user accounts. The project template includes a Models folder with a subfolder called AccountViewModels. The AccountViewModels folder contains a class called RegisterViewModel.cs. The RegisterViewModel has only enough properties to support the view that it is used with. Each property is decorated with a set of data annotations. These attributes—when used with the HTML Helpers or Tag Helpers—automatically generate the HTML needed to support form validation using jQuery validation. Shows RegisterViewModel.
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