Bug 102511 Enhance Highlighting to support Banding
Using the highlight feature to create a banded report results in a messy report. To recreate, create a simple tabular report. In the designer, select the detail row, go to the Highlights tab on the Property Editor view. Add a new highlight, set its condition to be "row[0] % 2" "Equals" "0". Set the formatting for the highlight to have a gray background color. When the report is previewed, alternating rows have a background color for each cell. The issue is that the backgrounds for the cells are not contiguous, there are spaces between each cell's background, and if a cell has a null value there is no background color. In this situation the highlight should apply to the row, instead it is being applied to each cell. If I manually set the background of a detail row to be gray I get the effect I want.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
{
				handleTableBand( table.getHeader( ), value );
				handleTableBand( table.getFooter( ), value );
			}
			else
			{
				pushExpressions( query.getBeforeExpressions( ) );
				handleReportItemExpressions( table );
				handleTableBand( table.getHeader( ), value );
				popExpressions( );
				SlotHandle groupsSlot = ( (TableHandle) table.getHandle( ) )
						.getGroups( );
				
				pushReportItemQuery( query );
				for ( int i = 0; i < table.getGroupCount( ); i++ )
				{
					handleTableGroup( table.getGroup( i ),
							(GroupHandle) groupsSlot.get( i ), value );
				}
				popReportItemQuery( );
				if ( table.getDetail( ).getRowCount( ) != 0 )
				{
					query.setUsesDetails( true );
				}
				pushReportItemQuery( query );
				pushExpressions( query.getRowExpressions( ) );
				handleTableBand( table.getDetail( ), value );
				popExpressions( );
				popReportItemQuery( );
				pushExpressions( query.getAfterExpressions( ) );