Bug 209126 DataException throws out when set highlight condition in sub-report[0302]
Description: Set highlight condition in sub-report, when "select value..." in the highlight dialog, DataException throws out. Build version:2.3.0.v20071108-0800 Steps to reproduce: 1.Get the attached report design file, which contains a sub-report. 2.Select the inner table, and then go to "highlight" tab in the property editor view to set a highlight rule. When click "select value...", DataException throws out. Error: The expression's value can not be retrieved. An error happened in data type conversion. Can not convert the value of org.eclipse.birt.data.engine.script.DataExceptionMocker@79c17b to Integer type.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HighlightRuleBuilder.java
}
			public void widgetSelected( SelectionEvent e )
			{
				
				checkEditDelButtonStatus( );
			}
		} );
		table.addKeyListener( new KeyListener( ) {
			public void keyPressed( KeyEvent e )
			{
				
				if ( e.keyCode == SWT.DEL )
				{
					int index = table.getSelectionIndex( );
					if ( index > -1 )
					{
						valueList.remove( index );
						tableViewer.refresh( );
						if ( valueList.size( ) > 0 )
						{
							if ( valueList.size( ) <= index )
							{
								index = index - 1;
							}
							table.select( index );
						}
						updateButtons( );
					}
					else
					{