How to handle Booleans/CheckBoxes in ASP.NET MVC 2 with DataAnnotations?

Question

I\'ve got a view model like this:

public class SignUpViewModel
{
    [Required(ErrorMessage = \"Bitte lesen und akzeptieren Sie die AGB.\")]
    [DisplayName         


        

Answer 1

For people who are having trouble getting this working for validation on the client side (formerly me): make sure you have also

1. Included <% Html.EnableClientValidation(); %> before the form in the view
2. Used <%= Html.ValidationMessage or Html.ValidationMessageFor for the field
3. Created a DataAnnotationsModelValidator which returns a rule with a custom validation type
4. Registered the class deriving from DataAnnotationsModelValidator in the Global.Application_Start

http://www.highoncoding.com/Articles/729_Creating_Custom_Client_Side_Validation_in_ASP_NET_MVC_2_0.aspx

is a good tutorial on doing this, but misses step 4.