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
typeChoicer.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent e )
			{
				reLayoutSubPages( );
				updatePreview( );
				notifyFormatChange( );
			}
		} );
		typeChoicer.setItems( getFormatTypes( ) );
		typeChoicer.select( 0 );
		infoComp = new Composite( this, SWT.NONE );
		infoComp.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		infoComp.setLayout( new StackLayout( ) );
		createCategoryPages( infoComp );
		setInput( null, null );
		setPreviewText( defaultDateTime );
	}
	protected void createContentsHorizontally( )
	{
		setLayout( UIUtil.createGridLayoutWithoutMargin( 2, false ) );
		
		Composite container = new Composite( this, SWT.NONE );
		GridData data = new GridData( );
		data.widthHint = DEFAULT_CATEGORY_CONTAINER_WIDTH;
		container.setLayoutData( data );
		container.setLayout( new GridLayout( 1, false ) );
		new Label( container, SWT.NONE ).setText( LABEL_FORMAT_DATE_TIME_PAGE ); 
		typeChoicer = new Combo( container, SWT.READ_ONLY );
		typeChoicer.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		typeChoicer.addSelectionListener( new SelectionAdapter( ) {