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
new Label( group, SWT.NONE );
		int tableStyle = SWT.SINGLE
				| SWT.BORDER
				| SWT.H_SCROLL
				| SWT.V_SCROLL
				| SWT.FULL_SELECTION;
		table = new Table( group, tableStyle );
		data = new GridData( GridData.FILL_VERTICAL );
		data.horizontalSpan = 4;
		table.setLayoutData( data );
		table.setHeaderVisible( false );
		table.setLinesVisible( true );
		TableColumn column;
		int i;
		String[] columNames = new String[]{
			Messages.getString( "FilterConditionBuilder.list.item1" ),
		};
		int[] columLength = new int[]{
			488
		};
		for ( i = 0; i < columNames.length; i++ )
		{
			column = new TableColumn( table, SWT.NONE, i );
			column.setText( columNames[i] );
			column.setWidth( columLength[i] );
		}
		table.addSelectionListener( new SelectionListener( ) {
			public void widgetDefaultSelected( SelectionEvent e )
			{