Workbook 3.2

Individually, each field is valid. But from a cross-field point of view, the user isn't taking the submission process seriously.

Goal: You will use cross-field validation to ensure the user isn't entering garbage data.

Task 1

The following code rejects a field and adds an error to the BindingResult.

bindingResult.rejectValue(arg1, arg2, arg3):
  // Argument 1: The field value you wish to reject.
  // Argument 2: Error Code
  // Argument 3: Error message.

Using this information:

1. reject the lastName if it happens to equal the firstName.
2. Leave the error code empty "".
3. Display the error message: please enter valid data.

Good Luck!