Cannot pass parameter to Crystal Report

I am writing a JSF page to get user input, and pass that input to Crystal Report (Crystal Report for Eclipse 2.0). I don't know why the parameterFields cannot load my parameter. Please help me!!!

My First page:

My second page (result page) for "Show Report 2":

My Beanis:

package crDemo;

import javax.faces.bean.ManagedBean;

import com.crystaldecisions.reports.reportengineinterface.JPEReportSourceFactory;
import com.crystaldecisions.sdk.occa.report.data.Fields;
import com.crystaldecisions.sdk.occa.report.data.ParameterField;
import com.crystaldecisions.sdk.occa.report.data.ParameterFieldDiscreteValue;
import com.crystaldecisions.sdk.occa.report.data.Values;
import com.crystaldecisions.sdk.occa.report.lib.ReportSDKException;
import com.crystaldecisions.sdk.occa.report.reportsource.IReportSourceFactory2;

@ManagedBean
public class ReportBean {
	private Object reportSource1 = null;
	private Object reportSource2 = null;
	private String inputText = "";
	private Fields<ParameterField> parameterFields = new Fields<ParameterField>();
	
	public Object getReportSource1() {
		return reportSource1;
	}
	public void setReportSource1(Object reportSource1) {
		this.reportSource1 = reportSource1;
	}
	public Object getReportSource2() {
		return reportSource2;
	}
	public void setReportSource2(Object reportSource2) {
		this.reportSource2 = reportSource2;
	}
	public String getInputText() {
		return inputText;
	}
	public void setInputText(String inputText) {
		this.inputText = inputText;
	}
	public Fields<ParameterField> getParameterFields() {
		return parameterFields;
	}
	public void setParameterFields(Fields<ParameterField> parameterFields) {
		this.parameterFields = parameterFields;
	}
	
	public String show1() {
		try {
		// Instantiate the report object
		String reportLocation;
		reportLocation = "rpt/demo1.rpt";
		IReportSourceFactory2 rptSrcFactory = new JPEReportSourceFactory();
		
			reportSource1 = rptSrcFactory.createReportSource(reportLocation, java.util.Locale.getDefault() );
		} catch (ReportSDKException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return "rpt1";
	}
	
	public String show2() {
		try {
		// Instantiate the report object
		String reportLocation;
		reportLocation = "rpt/demo2.rpt";
		IReportSourceFactory2 rptSrcFactory = new JPEReportSourceFactory();
		reportSource2 = rptSrcFactory.createReportSource(reportLocation, java.util.Locale.getDefault() );
		
		// Clear previous parameter
		parameterFields.clear();

//Create a ParameterField object for each field that you wish to set.
		ParameterField paramFieldOne = new ParameterField();

//You must set the report name. Set the report name to an empty string if your report does not contain a subreport; otherwise, the report name will be the name of the subreport
		paramFieldOne.setReportName("");

//Create a Values object and a ParameterFieldDiscreteValue object for each parameter field you wish to set.
		//If a ranged value is being set, a ParameterFieldRangeValue object should be used instead of the discrete value object.
		Values valueOne = new Values();
		ParameterFieldDiscreteValue paramFieldDVOne = new ParameterFieldDiscreteValue();

//----------- Initialize the parameter fields ----------

//Set the name and value for each parameter field that is added.
		//Values for parameter fields are represented by a ParameterFieldDiscreteValue or ParameterFieldRangeValue object.
		System.out.println("Input parameter = " + inputText);
		paramFieldOne.setName("paramOne");  // "paramOne" is parameter name in my Crystal Report file (demo2.rpt)
		paramFieldDVOne.setValue(inputText);

//Add the parameter field values to the Values collection object.
		valueOne.add(paramFieldDVOne);

//Set the current Values collection for each parameter field.
		paramFieldOne.setCurrentValues(valueOne);

//Add each parameter field to the Fields collection.
		//The Fields object is now ready to be used with the viewer.
		parameterFields.add(paramFieldOne);

} catch (ReportSDKException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return "rpt2";
	}
}

Runtime result:

Enter something and click "Show report 2"

Dear all,

My complete source code and eclipse workspace can be download here:
http://dl.dropbox.com/u/43307712/crDemo_workspace.7z

Anyone know how to pass parameter?

Thank you
Kevin.