Some parameters are missing values

Question

I am trying to invoke a crystal report using JRC API. I am using Business Objects XI.
When I try to invoke the report after setting all parameters I am getting an error message "Some parameters are missing values ". Here is how my JSP code looks like
ReportClientDocument oReportClientDocument = new ReportClientDocument();
oReportClientDocument.open(reportName, 0);
CrystalReportViewer oCrystalReportViewer = new CrystalReportViewer();
//set the reportsource property of the viewer
oCrystalReportViewer.setReportSource(reportSource);
//set viewer attributes
oCrystalReportViewer.setOwnPage(true);
oCrystalReportViewer.setOwnForm(true);
//set the CrystalReportViewer print mode
oCrystalReportViewer.setPrintMode(CrPrintMode.ACTIVEX);
//refresh the CrystalReportViewer if necessary (only required once)
if (session.getAttribute("refreshed") == null)
oCrystalReportViewer.refresh();
session.setAttribute("refreshed", "true");
String userid="emagia";
String password="emagia";
String rptuserid="tjordan";
String fromdate="07/01/2008";
String todate="07/12/2008";
ConnectionInfo ci = new ConnectionInfo();
ci.setUserName(userid);
ci.setPassword(password);
ConnectionInfos connections = new ConnectionInfos();
connections.add(ci);
oCrystalReportViewer.setEnableLogonPrompt(false);
oCrystalReportViewer.setDatabaseLogonInfos(connections);
ParameterFieldDiscreteValue val1 = new ParameterFieldDiscreteValue();
val1.setValue(rptuserid);
Values vals1 = new Values();
vals1.add(val1);
ParameterField param1 = new ParameterField();
param1.setName("User Id");
param1.setReportName("");
param1.setCurrentValues(vals1);
Fields fields = new Fields();
fields.add(param1);
ParameterFieldDiscreteValue val2 = new ParameterFieldDiscreteValue();
val2.setValue(fromdate);
Values vals2 = new Values();
vals2.add(val2);
ParameterField param2 = new ParameterField();
param2.setName("Date Range from");
param2.setReportName("");
param2.setCurrentValues(vals2);
fields.add(param2);
ParameterFieldDiscreteValue val3 = new ParameterFieldDiscreteValue();
val3.setValue(todate);
Values vals3 = new Values();
vals3.add(val3);
ParameterField param3 = new ParameterField();
param3.setName("Date Range To");
param3.setReportName("");
param3.setCurrentValues(vals3);
fields.add(param3);
oCrystalReportViewer.setEnableParameterPrompt(false);
oCrystalReportViewer.setParameterFields(fields);
oCrystalReportViewer.processHttpRequest(request, response,getServletConfig().getServletContext(), null);
oCrystalReportViewer.dispose();
In the Tomcat log this is what I get
- JRCAgent3 received request: refreshData
- JRCAgent3 attempting to acquire license
- JRCAgent3 successfully acquired license
- JRCAgent3 releasing license
- JRCAgent3 received request: getPromptConnInfos
- JRCAgent3 received request: compoundRequest
- JRCAgent3 received request: setSQLLogonInfoRequest
- JRCAgent3 received request: setSQLLogonInfoRequest
- JRCAgent3 received request: fetchReportPageRequest
- JRCAgent3 attempting to acquire license
- JRCAgent3 successfully acquired license
- Logon: Connecting to database using local JNDI server ...
- Connection Opened null
- Connection opened (Connection:  databaseType=JDBC  serverName=reports_dsn.dsn  state=open  databaseDriverName=crdb_odbc.dll).
- Report parameters is not valid
- Report parameters is changed
- Handling report parameters changes
- Validating report parameters
- com.crystaldecisions.reports.dataengine.l: Some parameters are missing values
- The report requires parameter values that need to be supplied by the client before further processing
com.crystaldecisions.reports.dataengine.l: Some parameters are missing values
     at com.crystaldecisions.reports.dataengine.j.a(Unknown Source)
     at com.crystaldecisions.reports.dataengine.a9.a(Unknown Source)
Can anybody tell me why I am getting this error??
Any help will be appreciated.

Answer 1

The problem may be that you are setting your report date parameters as a string when you pass the value to the report.   If the JRC does not recognize the parameter value as the correct type, it will throw the error you see when trying to pass them to the report.
If they are a date type or a date time type in the report, they must be set as such using the Java Calendar object.
Below is an example of how one would pass a date parameter to a report:
//DATE VALUE PARAMETER.
     Calendar calendar = Calendar.getInstance();
     calendar.clear();
     calendar.set(2004, 1, 17);
     Date dateParamVal = calendar.getTime();     
     pfieldDate.setName("dateParam");
     pfieldDVDate.setValue(dateParamVal);
     //Add the parameter field values to the Values collection object.
     vals5.add(pfieldDVDate);
     //Set the current Values collection for each parameter field.
     pfieldDate.setCurrentValues(vals5);
     //Add each parameter field to the Fields collection.
     //The Fields object is now ready to be used with the viewer.
     parameterFields.add(pfieldDate);
     //DATE-TIME VALUE PARAMETER.
     Calendar calendar2 = Calendar.getInstance();
     calendar2.clear();
     calendar2.set(2002, 5, 12, 8, 23, 15);
     Date dateTimeParamVal = calendar2.getTime();
     pfieldDateTime.setName("dateTimeParam");
     pfieldDVDateTime.setValue(dateTimeParamVal);
     //Add the parameter field values to the Values collection object.
     vals6.add(pfieldDVDateTime);
     //Set the current Values collection for each parameter field.
     pfieldDateTime.setCurrentValues(vals6);
     //Add each parameter field to the Fields collection.
     //The Fields object is now ready to be used with the viewer.
     parameterFields.add(pfieldDateTime);
     //TIME VALUE PARAMETER.
     Calendar calendar3 = Calendar.getInstance();
     calendar3.clear();
     calendar3.set(2002, 5, 12, 13, 44, 59);
     Date timeParamVal = calendar3.getTime();     
     pfieldTime.setName("timeParam");
     pfieldDVTime.setValue(timeParamVal);
     //Add the parameter field values to the Values collection object.
     vals7.add(pfieldDVTime);
     //Set the current Values collection for each parameter field.
     pfieldTime.setCurrentValues(vals7);
     //Add each parameter field to the Fields collection.
     //The Fields object is now ready to be used with the viewer.
     parameterFields.add(pfieldTime);
Edited by: Merry Enns on Aug 5, 2008 8:11 PM