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
handle.getFontSize( ).setStringValue( null );
			handle.getColor( ).setValue( null );
			handle.getBackgroundColor( ).setValue( null );
			handle.setFontStyle( null );
			handle.setFontWeight( null );
			handle.setTextUnderline( null );
			handle.setTextLineThrough( null );
		}
		catch ( Exception e )
		{
			WidgetUtil.processError( getShell( ), e );
		}
	}
	/**
	 * SYNC the control value according to the handle.
	 */
	private void syncViewProperties( )
	{
		
		
		if ( handle != null )
		{
			
			expression.setText( DEUtil.resolveNull( handle.getTestExpression( ) ) );
			operator.select( getIndexForOperatorValue( handle.getOperator( ) ) );
			String value = getValueForOperator( operator.getText( ) );
			valueVisible = determineValueVisible( value );
			if ( valueVisible == 3 )
			{
				createValueListComposite( operator.getParent( ) );