Bug 122869 Drag a parameter from data explorer view into a table in library, a new parameter is created automatically.
Description:Drag a parameter from data explorer view into a table in library, a new parameter is created automatically. Steps to reproduce: 1. Add a cascading parameter and a table in a library file. 2. Drag a parameter from data explorer view into a table cell in layout editor. 3. Find that a new parameter was added in data explorer view automatically.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/palette/BasePaletteFactory.java
grid = factory.newGridItem( null, 2, 1 );
				try
				{
					List cellList = ( (RowHandle) grid.getRows( ).get( 0 ) ).getCells( )
							.getContents( );
					TextItemHandle textHandle = factory.newTextItem( null );
					textHandle.setContent( AUTOTEXT_TEXT_CONFIDENTIAL );
					textHandle.setContentType( DesignChoiceConstants.TEXT_CONTENT_TYPE_HTML );
					( (CellHandle) cellList.get( 0 ) ).getContent( )
							.add( textHandle );
					String text = AUTOTEXT_LABEL_PAGE
							+ "<value-of>pageNumber</value-of>"; 
					textHandle = factory.newTextItem( null );
					textHandle.setContentType( DesignChoiceConstants.TEXT_CONTENT_TYPE_HTML );
					textHandle.setContent( text );
					( (CellHandle) cellList.get( 1 ) ).getContent( )
							.add( textHandle );
				}
				catch ( SemanticException e )
				{
					ExceptionHandler.handle( e );
				}
			}
			else if ( IReportElementConstants.REPORT_ELEMENT_GRID.equals( type ) )
			{
				TableOptionDialog dlg = new TableOptionDialog( UIUtil.getDefaultShell( ),
						false );
				if ( dlg.open( ) == Window.OK
						&& dlg.getResult( ) instanceof int[] )
				{