I've built a UserRepository interface to communicate with my LINQ to SQL Data layer, but I'm trying to figure out how to implement validation.
Here is what my AddUser subroutine looks like
Public Sub AddUser(ByVal about As String, ByVal birthdate As DateTime, ByVal openid As String, ByVal regionid As Integer, ByVal website As String) Implements IUserRepository.AddUser
Dim user = New User
user.About = about
user.BirthDate = birthdate
user.LastSeen = DateTime.Now
user.MemberSince = DateTime.Now
user.OpenID = openid
user.RegionID = regionid
user.UserName = String.Empty
user.WebSite = website
dc.Users.InsertOnSubmit(user)
dc.SubmitChanges()
End Sub
And then my controller will simply call AddUser(...)
But I haven't the foggiest idea on how to implement both client side and server side validation on this.
(I think I would prefer to use jQuery AJAX and do all of the validation on the server, but I'm totally open to opinions)
