CreditCard Validator in ASP.NET MVC tutorial with examples

CreditCard Validator in ASP.NET MVC: A Tutorial with Code Examples. ASP.NET MVC provides a rich set of data annotations to validate user input in a model. One of the most important annotations is the credit card data annotation, which ensures that the entered data is a valid credit card number. In this blog post, we will look at how to use the credit card data annotation in ASP.NET MVC.

Credit card data annotations can be added to the model property using the System.ComponentModel.DataAnnotations namespace. To use the credit card data annotation, you need to add the following code to your model:

using System.ComponentModel.DataAnnotations;
public class CreditCardModel
{
    [CreditCard]
    [Display(Name = "Credit Card Number")]
    public string CreditCardNumber { get; set; }
}

In the above code, the CreditCard attribute is applied to the CreditCardNumber property. This tells ASP.NET MVC to validate the entered data as a credit card number.

Enable client side validation, you can check this: Enable client side validation in ASP.NET MVC

To display the error message, you need to add the following code in your view:

@model CreditCardModel
@using (Html.BeginForm())
{
    @Html.LabelFor(m => m.CreditCardNumber)
    @Html.EditorFor(m => m.CreditCardNumber)
    @Html.ValidationMessageFor(m => m.CreditCardNumber)
    
}

In the above code, the Html.ValidationMessageFor method is used to display the error message if the entered data is not a valid credit card number.