Initially, I always pass individual object properties through JSON and form the model in the controller as I wasn’t sure how to pass/form a model from Javascript to controller

Controller

Code Snippet
  1. [AllowAnonymous]
  2.         public ActionResult JsonRegister(string username, string password, string confirmpassword,
  3.                                             string email, string confirmemail)
  4.         {
  5.             MemberModel.RegistrationModel model = new MemberModel.RegistrationModel() {
  6.                                                                                         UserName = username,
  7.                                                                                         Password = password,
  8.                                                                                         ConfirmPassword = confirmpassword,
  9.                                                                                         Email = email,
  10.                                                                                         ConfirmEmail = confirmemail };

Javascript

Code Snippet
  1. $.getJSON(‘@Url.Action(“JsonRegister”)‘, { UserName: $(“#UserName”).val(),
  2.                                                     Password: $(“#Password”).val(),
  3.                                                     ConfirmPassword: $(“#ConfirmPassword”).val(),
  4.                                                     Email: $(“#Email”).val(),
  5.                                                     ConfirmEmail: $(“#ConfirmEmail”).val()
  6.                                                 }, function (RegisterResult) {
  7.                                                         if (RegisterResult.success) {
  8.                                                             $(‘#RegistrationFields’).hide();
  9.                                                             $(‘#ErrorMessage’).text(”);
  10.                                                             $(‘#RegistrationMessage’).css(‘display’, ”);
  11.                                                         }
  12.                                                         else {
  13.                                                             $(‘#ErrorMessage’).css(‘display’, ”).text(RegisterResult.errors);
  14.                                                         }
  15.         });

the code above is working just fine but I still feel that there is room for improvement. Below is the code that shows how you can still have your controller accepting the model instead of expanding the properties in the model as the parameters to the controller. The solution is just to have the model being assigned to a variable (in this context called as data) before passing it to the JSON, my previous code was forming the actual object in the JSON code

Controller

Code Snippet
  1. [AllowAnonymous]
  2.         public ActionResult JsonRegister(MemberModel.RegistrationModel model)
  3.         {
  4.             string error = string.Empty;
  6.             if (ModelState.IsValid)

Javascript

Code Snippet
  1. var data = { UserName: $(“#UserName”).val(),
  2.             Password: $(“#Password”).val(),
  3.             ConfirmPassword: $(“#ConfirmPassword”).val(),
  4.             Email: $(“#Email”).val(),
  5.             ConfirmEmail: $(“#ConfirmEmail”).val()
  6.         };
  8.         $.getJSON(‘@Url.Action(“JsonRegister”)‘, data, function (RegisterResult) {
  9.             if (RegisterResult.success) {
  10.                 $(‘#RegistrationFields’).hide();
  11.                 $(‘#ErrorMessage’).text(”);
  12.                 $(‘#RegistrationMessage’).css(‘display’, ”);
  13.             }
  14.             else {
  15.                 $(‘#ErrorMessage’).css(‘display’, ”).text(RegisterResult.errors);
  16.             }
  17.         });