container.setLayout( WidgetUtil.createGridLayout( 3 ) );
container.setLayout( WidgetUtil.createGridLayout( 3 ,15) );
	public void buildUI( Composite parent  )	{		super.buildUI( parent );		container.setLayout( WidgetUtil.createGridLayout( 3 ) );		// Defines provider.		IDescriptorProvider nameProvider = new TextPropertyDescriptorProvider( ReportItemHandle.NAME_PROP,				ReportDesignConstants.DATA_SOURCE_ELEMENT );		// Defines section.		TextSection nameSection = new TextSection( nameProvider.getDisplayName( ),				container,				true );		nameSection.setProvider( nameProvider );		nameSection.setWidth( 500 );		nameSection.setLayoutNum( 3 );		nameSection.setGridPlaceholder( 1, true );		// Adds section into this page.		addSection( PageSectionId.DATASOURCE_NAME, nameSection ); //$NON-NLS-1$		createSections( );		layoutSections( );	}