DateTextField and DatePicker are not using the same date pattern

[Eric Rotick]

I have a situation where the DateTextField and DatePicker are not using the
same date pattern although I set them to the same value.

If I have an existing date in the model then it is formatted correctly and
that date is also inherited correctly when the DatePicker opens. When I then
select a different date in the DatePicker the correct date value is returned
to the DateTextField but the format it wrong. Then if I submit the form I
get an error on the DateTextField.

For example, if I select a date of "28/Mar/2008" in the DatePicker it gets
returned to the DateTextField as "28/3/2008".

Any ideas?

import org.apache.wicket.datetime.markup.html.form.DateTextField;
import org.apache.wicket.datetime.PatternDateConverter;
import org.apache.wicket.extensions.yui.calendar.DatePicker;
...

public class DateField extends Panel {

    public DateField(
        String id,
        boolean readonly,
        IField field,
        IModel model
    )
    {
        super( id );


        final String dateFormat = "dd/MMM/yyyy";
        PatternDateConverter pdc = new PatternDateConverter( dateFormat,
true );

        DateTextField dtf = new DateTextField( "textValue", new
NamedAccessorModel( model, field.getModelName( ) ), pdc );
        add( dtf );

        DatePicker dp = new DatePicker( ) {
            protected boolean enableMonthYearSelection( ) {
                return true;
            }
            protected String getDatePattern( ) {
                return dateFormat;
            }
        };
        dtf.add( dp );
    }

}