Validations in MVC.

This is code of view.m trying to add validation in form.by default it shows validation for required field on page load.

@using (Html.BeginForm("Index", "EMP", FormMethod.Post))

{

Employee Details
EmployeeId:	@Html.TextBoxFor(m=>m.EmpId) @Html.ValidationMessageFor(m=>m.EmpId, "", new { @class = "text-danger" })
Name:	@Html.TextBoxFor(m => m.Name) @Html.ValidationMessageFor(m => m.Name, "", new { @class = "text-danger" })
Gender:	@Html.DropDownListFor(m => m.Gender, new List { new SelectListItem{Text="Male", Value="M"}, new SelectListItem{Text="Female", Value="F"}}, "Please select")
City:	@Html.TextBoxFor(m => m.City) @Html.ValidationMessageFor(m => m.City, "", new { @class = "text-danger" })
City:	@Html.TextBoxFor(m => m.Email) @Html.ValidationMessageFor(m => m.Email,"", new { @class = "text-danger" })

}

Conroller:

public ActionResult Index(Employee emp)

{

int id = emp.EmpId;

string name = emp.Name;

string gender = emp.Gender;

string city = emp.City;

string email = emp.Email;

return View();

}

Model:

public class Employee

{

[Required]

public int EmpId { get; set; }

[Required]

public string Name { get; set; }

[Required]

public string Gender { get; set; }

[Required]

public string City { get; set; }

[Required(ErrorMessage = "Email is Required")]

[RegularExpression(@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}" +

@"\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\" +

@".)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$",

ErrorMessage = "Email is not valid")]

public string Email { get; set; }

}

Output: