I have two classes User and Role.User class has Role as one of its attributes and getRole() and setRole() methods. Role class
has two attributes name and description. I have a form to add user with drop down choice which has list of role names. When I submit the form, I need to add this form value role name to user database. But at present it is showing null pointer exception. How do I convert this String value (role name ) to Role object. My code is as below. ........ ........ TextField userNameComp = new TextField("username"); ............ ........... .......... DropDownChoice ddc = new DropDownChoice("role",roleList); form.add(userNameComp); ........... ......... .......... form.add(ddc); } class userAddForm extends Form { public userAddForm(String id,IModel model) { super(id,model); } @Override public void onSubmit() { User ad = (User)getModelObject(); .......... ad.add(); // class User has add() method which adds the values of the UserAddForm to database ......... ......... } } } Please help. thanks -- View this message in context: http://www.nabble.com/Convert-String-to-desired-class-object-tf4848185.html#a13871390 Sent from the Wicket - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]