User-369506445 posted
hi
first set below tags in your web config
<appSettings>
<add key="ClientValidationEnabled" value="true" />
<add key="UnobtrusiveJavaScriptEnabled" value="true" />
</appSettings>
then add below jquery reference
jquery.validate.js
jquery.validate.unobtrusive.js
next, add the attribute for your properties
[Required]
[EmailAddress]
[Display(Name = "Email")]
public string Email { get; set; }