Bug 180645 Support set format for Date/Time type parameter.[0705]
Description: Support set format for Date/Time type parameter. Build number:2.2.0.v200704031345 Steps to reproduce: 1. New a Date report parameter. 2. Click Change... button to set format for it. Expected result: Can set format for Date/Time parameter. Actual result: Change... button is disabled. Error log:N/A
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/FormatDateTimePage.java
}
		}
		return displayName;
	}
	/**
	 * Gets the corresponding internal display name given the category.
	 * 
	 * @param category
	 * @return
	 */
	private String getDisplayName4Category( String category )
	{
		return ChoiceSetFactory.getStructDisplayName( DateTimeFormatValue.FORMAT_VALUE_STRUCT,
				DateTimeFormatValue.CATEGORY_MEMBER,
				category );
	}
	private void fireFormatChanged( String newCategory, String newPattern )
	{
		if ( listeners.isEmpty( ) )
		{
			return;
		}
		FormatChangeEvent event = new FormatChangeEvent( this,
				StyleHandle.DATE_TIME_FORMAT_PROP,
				newCategory,
				newPattern );
		for ( Iterator iter = listeners.iterator( ); iter.hasNext( ); )
		{
			Object listener = iter.next( );
			if ( listener instanceof IFormatChangeListener )