Bug 190207 Integrate Aggregation builder with charts
Charts should be able to use aggregates in their databinding definition. The UI is missing the "Add Aggregation..." button in the chart databinding dialog.
chart/org.eclipse.birt.chart.reportitem.ui/src/org/eclipse/birt/chart/reportitem/ui/ReportDataServiceProvider.java
ChartWizard.showException( e.getLocalizedMessage( ) );
				}
			}
			protected List getBindingList( DesignElementHandle inputElement )
			{
				Iterator iterator = getColumnDataBindings( itemHandle );
				List list = new ArrayList( );
				while ( iterator.hasNext( ) )
				{
					list.add( iterator.next( ) );
				}
				return list;
			}
			protected void setShellStyle( int newShellStyle )
			{
				super.setShellStyle( newShellStyle
						| SWT.DIALOG_TRIM | SWT.RESIZE | SWT.APPLICATION_MODAL );
			}
		};
		page.setInput( itemHandle );
		ExpressionProvider ep = new ExpressionProvider( itemHandle );
		ep.addFilter( new ExpressionFilter( ) {
			public boolean select( Object parentElement, Object element )
			{
				
				return !( parentElement.equals( ExpressionProvider.BIRT_OBJECTS )
						&& element instanceof IClassInfo && ( (IClassInfo) element ).getName( )
						.equals( "Total" ) ); 
			}
		} );