In this article I will explain with an example, how to perform Client Side Password and Confirm Password validation in ASP.Net MVC Razor using Data Annotations and jQuery.
The Client Side Password and Confirm Password validation will be performed using Model class and Data Annotation attributes.
 
 
Configuring Bundles and enabling Client Side Validation
Please refer the following article for complete information on how to configure Bundles and enable Client Side validation in ASP.Net MVC project.
Note: By default the validation done using Data Annotation attributes is Server Side. And hence to make it work Client Side, the Client Side validation must be enabled.
 
 

Model
The following Model class consists of two properties Password and ConfirmPassword. The properties are decorated with the following Data Annotation attributes for performing validations.
1. Required Data Annotation attribute.
Both the Password and the ConfirmPassword properties has been applied with the Required Data Annotation attributes. The Required Data Annotation attribute have been specified with a property Error Message with a string value. As the name suggests, this string value will be displayed to the user when the respective validation fails.
2. Compare Data Annotation attribute.
The ConfirmPassword property is decorated with an additional attribute i.e. Compare Data Annotation attribute. It accepts two parameters, the first one is the name of the property with which its value will be compared while the second one is for displaying the error message when the Compare validation fails.
public class PersonModel
{
    [Required(ErrorMessage = "Password is required.")]
    public string Password { get; set; }
 
    [Required(ErrorMessage = "Confirmation Password is required.")]
    [Compare("Password", ErrorMessage = "Password and Confirmation Password must match.")]
    public string ConfirmPassword { get; set; }
}
 
 
Controller
The Controller consists of two Action methods.
Action method for handling GET operation
Inside this Action method, simply the View is returned.
 
Action method for handling POST operation
This action method handles the POST operation and when the form is submitted, the object of the PersonModel class is sent to this method.
public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        return View();
    }
 
    [HttpPost]
    public ActionResult Index(PersonModel person)
    {
        return View();
    }
}
 
 
View
Inside the View, in the very first line the PersonModel class is declared as Model for the View.
The View consists of an HTML Form which has been created using the Html.BeginForm method with the following parameters.
ActionNameName of the Action. In this case the name is Index.
ControllerName – Name of the Controller. In this case the name is Home.
FormMethod – It specifies the Form Method i.e. GET or POST. In this case it will be set to POST.
Inside the View, the following two HTML Helper functions are used:-
1. Html.PasswordFor – Creating a Password TextBox for the Model property.
2. Html.ValidationMessageFor – Displaying the Validation message for the property.
There is also Submit button which when clicked, the Form gets submitted.
The jQuery and the jQuery Validation script bundles are rendered at the end of the Model using the Scripts.Render function.
@model Email_Validation_MVC.Models.PersonModel
 
@{
    Layout = null;
}
 
<!DOCTYPE html>
 
<html>
<head>
    <meta name="viewport" content="width=device-width"/>
    <title>Index</title>
    <style type="text/css">
        body {
            font-family: Arial;
            font-size: 10pt;
        }
        .error {
            color: red;
        }
    </style>
</head>
<body>
    @using (Html.BeginForm("Index", "Home", FormMethod.Post))
    {
        <table>
            <tr>
                <td>Password</td>
                <td>@Html.PasswordFor(m => m.Password)</td>
                <td>@Html.ValidationMessageFor(m => m.Password, "", new { @class = "error" })</td>
            </tr>
            <tr>
                <td>Confirm Password</td>
                <td>@Html.PasswordFor(m => m.ConfirmPassword)</td>
                <td>@Html.ValidationMessageFor(m => m.ConfirmPassword, "", new { @class = "error" })</td>
            </tr>
            <tr>
                <td></td>
                <td><input type="submit" value="Submit"/></td>
                <td></td>
            </tr>
        </table>
    }
</body>
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/jqueryval")
</html>
 
 
Screenshot
Client Side Password and Confirm Password validation in ASP.Net MVC using Data Annotations and jQuery
 
 
Downloads