ContensisFormsHelper-validation.cshtml

@using Contensis.Framework.Web

@{
   AppContext.Current.Page.Scripts.Add("/siteelements/scripts/jqueryvalidate/jquery.validate.js");
   AppContext.Current.Page.Scripts.Add("/siteelements/scripts/jqueryvalidate/jquery.validate.unobtrusive.js");

   // define some validation rules against fields within the Form
   Validation.Add("Username",
       Validator.Required("You must provide a username"),
       Validator.StringLength(10, 0, "No more than 10 letters")
   );

   Validation.RequireField("Firstname", "Firstname is required");

   Validation.Add("Email",
       Validator.Regex(@"^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$",
       "Invalid format for an email address")
       );
}
…
@using (Html.BeginContensisForm("MyAction", "api/MyApiController"))
{
   @Html.ValidationSummary("Validation Summary", new { @class = "validation-summary-class" })
   <div class="form-group">
       <label for="firstname">Firstname:</label>
       @Html.TextBox("Firstname", null, new { @type = "email", @class = "form-control" })
   </div>
   …
}