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
for ( int i = 0; i < highlight.getRuleCount( ); i++ )
				{
					HighlightRuleDesign rule = highlight.getRule( i );
					if ( rule != null )
						addExpression( rule.getConditionExpr( ) );
				}
			}
		}
		/**
		 * handles action expressions, i.e, book-mark and hyper-link
		 * expressions.
		 */
		protected void handleAction( ActionDesign action )
		{
			if ( action != null )
			{
				switch ( action.getActionType( ) )
				{
					case ActionDesign.ACTION_BOOKMARK :
						addExpression( action.getBookmark( ) );
						break;
					case ActionDesign.ACTION_DRILLTHROUGH :
						DrillThroughActionDesign drillThrough = action
								.getDrillThrough( );
						if ( drillThrough != null )
						{
							addExpression( drillThrough.getBookmark( ) );
							if ( drillThrough.getParameters( ) != null )
							{
								Iterator ite = drillThrough.getParameters( )