MVC Model State Validations

<%= Html.ValidationSummary("Account creation was unsuccessful. correct the errors and try again.") %>
</div>
<% using (Html.BeginForm("Register", "Account" , FormMethod.Post))
{ %>
<div>
<fieldset>
<legend>Account Information</legend>
<p>
<label for="username">User Name:</label>
<%= Html.TextBox("username") %>
<%= Html.ValidationMessage("username") %>
</p>
<p>
<label for="FirstName">First Name</label>
<%= Html.TextBox("firstName") %>
<%= Html.ValidationMessage("firstName") %>
</p>
<p>
<label for="LastName">Last Name</label>
<%= Html.TextBox("lastName") %>
<%= Html.ValidationMessage("lastName") %>
</p>
<p>
<label for="email">Email:</label>
<%= Html.TextBox("email") %>
<%= Html.ValidationMessage("email") %>
</p>
<p>
<label for="password">Password:</label>
<%= Html.Password("password") %>
<%= Html.ValidationMessage("password") %>
</p>
<p>
<label for="confirmPassword">Confirm password:</label>
<%= Html.Password("confirmPassword") %>
<%= Html.ValidationMessage("confirmPassword") %>
</p>
<p>
<label for="Role">Role:</label>
<%= Html.DropDownList("Role",((SelectList)ViewData["Roles"]),"--Select One---") %>
</p>
<p>

[Code....]