Bug 141255 No error for the incompatible parameter value
Steps to reproduce: 1.New a decimal parameter, set the default value to "aaa" 2.Preview the report by "Preview" tab Expected result: Error to say the incompatible parameter value Actual result: Parameter request page keeps poping up till input the decimal value Note: if preview in Web Viewer, error will be thrown out, but no exception description.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/presentation/aggregation/parameter/RadioButtonParameterFragment.java
import org.eclipse.birt.report.context.ViewerAttributeBean;
import org.eclipse.birt.report.engine.api.ReportParameterConverter;
import org.eclipse.birt.report.service.BirtViewerReportDesignHandle;
import org.eclipse.birt.report.service.api.IViewerReportDesignHandle;
import org.eclipse.birt.report.service.api.IViewerReportService;
import org.eclipse.birt.report.service.api.InputOptions;
import org.eclipse.birt.report.service.api.ParameterDefinition;
import org.eclipse.birt.report.service.api.ParameterSelectionChoice;
import org.eclipse.birt.report.service.api.ReportServiceException;
import org.eclipse.birt.report.utility.ParameterAccessor;
/**
 * Fragment help rendering scalar parameter.
 * <p>
 * 
 * @see org.eclipse.birt.report.presentation.aggregation.BaseFragment
 */
public class RadioButtonParameterFragment extends ScalarParameterFragment
{
	/**
	 * Protected constructor.
	 * 
	 * @param parameter
	 *            parameter definition reference.
	 */
	public RadioButtonParameterFragment( ParameterDefinition parameter )
	{
		super( parameter );
	}
	protected void prepareParameterBean( HttpServletRequest request,
			IViewerReportService service, ScalarParameterBean parameterBean,