Process the Form and its child controls only if the Form was submitted by the user.
This method invokes {@link #isFormSubmission()} to check whether the formwas submitted or not.
The Forms processing order is:
- All {@link Field} controls in the order they were added
- All {@link Button} controls in the order they were added
- Invoke the Forms listener if defined
This method delegates validation to {@link #validate()} whilefile upload validation are delegated to {@link #validateFileUpload()}.
@see org.apache.click.Context#getRequestParameter(String)
@see org.apache.click.Context#getFileItemMap()
@return true to continue Page event processing or false otherwise