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
}
							}
							else if ( queries[i] instanceof ISubqueryDefinition )
							{
								
								if ( parentTrans != null )
								{
									parentTrans.getSubqueries( ).add(
											queries[i] );
								}
							}
							registerQueryAndElement( queries[i], item );
							report.getQueryToValueExprMap( ).put( queries[i],  
									queries[i].getRowExpressions( ) );
						}
					}
					if ( queries.length > 0 )
					{
						IBaseQueryDefinition query = queries[0];
						if ( query != null )
						{
							item.setQuery( query );
							pushQuery( query );
							pushExpressions( query.getRowExpressions( ) );
							handleReportItemExpressions( item );
							
							popExpressions( );
							popQuery( );
						}
					}