"Missing parameter values."  --  Export and Print only...

I have a web application and I am using CrystalReportViewer.  I am passing several parameters to Crystal using: 
report.SetParameterValue(field.Name, Session[field.Name]);
I have session variables which will hold parameters needed to pass into the report.  The session variables are populated from controls on my webpage after an onclick event.  This even not only populates session, but also passes parameters to the report with the following code: 
ReportDocument report = new ReportDocument();
Session["MapPathName"] = "./Reporting/CaseStudy.rpt";
report.FileName = Server.MapPath(Session["MapPathName"].ToString());
ParameterFields fields = new CrystalDecisions.Shared.ParameterFields();
fields = report.ParameterFields;
foreach (ParameterField field in fields)
      report.SetParameterValue(field.Name, Session[field.Name]);
CrystalReportViewer1.ReportSource = report;
This works great for reporting and is very extensible.  However, when clicking on the "Print" or "Export" buttons on the toolbar I get "Missing parameter values."  I attempted to export manually in code using the .ExportToStream function but I still get the error, "Missing parameter values." 
I received this error also in Refresh, Search, and Navigate functions.  This was corrected by calling a function that supplies the above code block to these functions.  However, I do not see any events for controlling the Print nor the Export events. 
QUESTION: How can I print or export a report when passing parameters using CrystalReportViewer?  Thanks in advance!
P.S. - Crystal Reports XI Release 2
Edited by: KyleSavant on Jun 18, 2009 5:42 PM

There are no Export or Print events accessible for the viewer
Since it sounds like you are creating the reportdocument object in your click event, the settings on this object become out of scope on successive postbacks executed by other events.
to get around this without major changes, you can place your "report" object in session in this event and retrieve it from session on successive postbacks.  This should solve your problems around navigation, printing and exporting.  What you will need to do is check if the session object exists (usually in page_load or page_initialze) and if so, retrieve it from session and bind it to the viewer's reportsource.  If the session object does not exist, then do nothing (ie you have not clicked your button yet that retrieves the parameter values from session and loads the report).  Also, in your click event you can check if the report session object exists and if so, remove it so that it can be re-created with your new parameter values (ie i'm assuming the only time you want to set parameter values is in this event).
Dan

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    Try parsing the parameter value to a decimal value before setting it as parameter value.
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  • Export and Print icons missing from report viewer

    I'm currently embedding crystal within a wicket application in which I'm making use of the getHtmlContent() method to retrieve the report's HTML.  For whatever reason, I'm not able to get either the export or print icons (on the top left side of the viewer).  Is this because I'm using the getHtmlContent() method or do I have something misconfigured somewhere?  Setting the setHasExportButton(true) and setHasPrintButton(true) on the report viewer object has no effect. 
    If I run the same report using the generated JSP outside of my application (within tomcat), I see the export/print buttons.  I notice the JSP makes use of the processHttpRequest() method.  Any help will be greatly appreciated.
    Thanks!
    Louis

    Hi Louis
    - The getHtmlContent() method handles the user's request to generate the HTML for the report and returns the HTML as a String.
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    - The setOwnPage(true) and  processHttpRequest() method should be used if you want the export and print button to appear in the report viewed through Crystal Report Viewer.
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         IReportSource reportSource = (IReportSource)session.getAttribute("reportSource");
    Create the viewer and render the report -
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         //oCrystalReportViewer.setPrintMode(CrPrintMode.ACTIVEX);
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    Hope this helps you .
    Thanks
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  • CRVS2010 Beta - Missing parameter values

    I want to export my report to pdf file and I want to set some parameters in report in runtime.
    But when I try to do it I have exception "Missing parameter values".
    Productversion: Visual Studio 2010 + Crystal Report 2008 + service pack v3.
    I read that problem was resolved in service pack v2.
    But now I don't have any idea how to fix my problem.
    I create report and add parameters ("MyParameter") as string.
    My test project:
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    try
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                   ParameterDiscreteValue crParameterDiscreteValue = new ParameterDiscreteValue {Value = "SBSUrl"};
                   crParameterValues.Clear();
                   crParameterValues.Add(crParameterDiscreteValue);
                   report.DataDefinition.ParameterFields["MyParameter"].ApplyCurrentValues(crParameterValues);
                   report.VerifyDatabase();
                   report.Refresh();
                      string reportFileName = string.Format(@"D:\CrystalReport\CRResult-{0}.pdf", DateTime.Now.Ticks);
                      ExportOptions rptExportOption;
                      var rptFileDestOption = new DiskFileDestinationOptions();
                      var rptFormatOption = new PdfRtfWordFormatOptions();
                      rptFileDestOption.DiskFileName = reportFileName;
                      rptExportOption = report.ExportOptions;
                           rptExportOption.ExportDestinationType = ExportDestinationType.DiskFile;
                           rptExportOption.ExportFormatType = ExportFormatType.PortableDocFormat;
                           rptExportOption.ExportDestinationOptions = rptFileDestOption;
                           rptExportOption.ExportFormatOptions = rptFormatOption;
                      report.Export(); //  I have exception here ("Missing parameter values.")
                 catch (Exception e)
                      Console.WriteLine(e);
              private void SetCurrentValuesForParameterField(ReportDocument reportDocument, ArrayList arrayList)
                   ParameterValues currentParameterValues = new ParameterValues();
                   foreach (object submittedValue in arrayList)
                        ParameterDiscreteValue parameterDiscreteValue = new ParameterDiscreteValue();
                        parameterDiscreteValue.Value = submittedValue.ToString();
                        currentParameterValues.Add(parameterDiscreteValue);
                   ParameterFieldDefinitions parameterFieldDefinitions = reportDocument.DataDefinition.ParameterFields;
                   ParameterFieldDefinition parameterFieldDefinition = parameterFieldDefinitions["MyParameter"];
                   parameterFieldDefinition.CurrentValues.IsNoValue = true;
                   parameterFieldDefinition.ApplyCurrentValues(currentParameterValues);
    Could anybody help me with this exception?

    Make sure you log on to the database, set the parameter, then export.
    See the following KBases:
    [1244475 - Error: Missing parameter value when exporting a Crystal Report with optional parameters using the CR .NET SDK|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_dev/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes.do]
    [1215426 - Err Msg: Missing parameter value when printing or exporting in VS .NET|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_dev/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes.do]
    [1215536 - Err Msg: Missing parameter field current value when exporting/printing in .NET|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_erq/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes.do]
    [1216546 - Err Msg: Missing Parameter Field Current Value when viewing a report in VS.NET|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_erq/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes.do]
    Also, see the following forum thread for possible solutions:
    Passing Parameters CR 2008 VS 2008 ASP.net
    Ludek

  • Missing Parameter Values CR2008 Optional Parameter

    Hi,
    I am getting "Missing Parameter Values" error
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    if I try to export a Report with an optional Parameter without setting the parametervalue.
    The Report works fine with ReportViewer.
    If I uncomment the "Parameterpart" and set a parametervalue it works fine, but it should works without a parametervalue too, its optional.
    I have tried many for a long time and read many Websites but it does not work !
    I use WinXP SP2 CR2008 with C# .NET 2.0 VS2005
    CrystalDecisions.CrystalReports.Engine.dll version 12.0.2000.683 Date: 2008-03-01
    CrystalDecisions.Shared.dll version 12.0.2000.683 Date: 2008-03-01
    Sorry my English is very Bad !
    Thanks a lot!
    ExportFormatType ExportType = ExportFormatType.PortableDocFormat;
                ReportDocument RD = new ReportDocument();
                RD.Load("C:\\ParaTest01.rpt");
                string strServer = "<ServerName>";
                string strDB = "<DBName>";
                string strUser = "<UserID>";
                string strPW = "<PW>";
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                //ParameterDiscreteValue crDiscrete1Value = new ParameterDiscreteValue();
                //crDiscrete1Value.Value = "GER";
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    RecordSelectionFormula in Report:
    (not HasValue({?Land}) OR {tab.location_code} = {?Land}) and
    {tab.sup} = "XXX" and
    {tab.Accounting_Period} = "200801"

    You need to be careful when using optional parameters. If you are using the optional parameter in a record selection formula you'll need to check and make sure it has a value before you use it. There is a function call HasValue() that you can use to do this.
    If you have an optional parameter in the record selection formula and you don't pass a value you'll need to make sure your selection formula can be completed with out it.
    This is an excerpt from our help file.
    Crystal Reports supports optional parameters. An optional parameter is a prompted value that does not have to be supplied by the user.
    Report designers should provide some guidance to the end user that a parameter is optional by adding this information to the prompt text.
    Optional parameters are treated by Crystal Reports as optional anywhere within the report that they are used. You cannot set one instance of the parameter to optional and another to mandatory.
    Note: After you set a parameter to optional, if you use the Select Expert, the system will automatically add the selection formula for you using the HasValue() function.
    The Formula Workshop Editor does not automatically add the formula. Only the Select Expert automatically adds the formula for you.
    If you change the parameter from optional to mandatory, the HasValue() function is not automatically removed from your formula.
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    When the report engine evaluates any formula which references an optional parameter that does not have a value, it generates a runtime error. All formulas that reference an optional parameter should first use the HasValue() function to check if that parameter has a value before evaluating it. This includes record selection formulas and saved data formulas.
    Note: The system will not automatically drop a statement from the SQL WHERE clause. It is the report designeru2019s responsibility to decide which statement to leave out based on HasValue() testing.

  • "Missing parameter value" error on autoprinting with CR layout

    Hi all, i had recently run into the following:
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    Gives an error:
    missing parameter value
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    With only @dockey token  present in the layouts (so no other parameter).
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    Any ideas?
    I found a likely issue in note 1466274 but it's listed as fixed in 8.8 PL 13, we are on PL 15. Could reproduce on PL 18.
    Thanks and regards.
    Daniel

    Hi Gordon.
    I could reproduce on the test copy of the db even on different patch levels.
    Can this be the almost same issue as stated in the note? I mean same code problem but at another point?
    Yesterday i found another example:
    uppon exiting the dunning wizard with print and exit option allmost the same error. The difference is that beforehand the same error messages one pops up with the following:
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    "A report application server meghibásodott." (this is even with sap b1 gui langugage set to english)
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    Thank you.
    Regards.
    D
    Edited by: Daniel Omaisz Takacs on Feb 1, 2011 9:09 AM

  • Use of layout when more than one parameter - Error Missing Parameter Values

    Hi,
    Is it possible to use a crystal report which has more than one parameter as the layout for the bill of materials report.
    I have 3 parameters
           1. [email protected]       The Bill of Materials to be printed
           2. Number of levels to be printed
           3. type of levels to print.
    When I try to print it gives me the error Missing Parameter Values.
    I have tried changing the [email protected] to [email protected] but the same error.
    Does anyone now where to find a list of these tokens?
    Thanks
    Chris

    I looked at the crystal report conversion to try to find what parameters it used and found none.
    I have managed to create and use a crystal report to replace the production order using [email protected] as the parameter.  This works within SAP.  However I have converted the system production order to crystal reports and from the converted report I cannot see any parameters at all.
    How and where can you find out what paramters you need to use to replace any PLD report?  Several reports have multiple selection criteria before the report prints.  How can you find out what their tokens are called?  I am starting to pull my hair out.  I am getting great help from this forum, but do you know any documentation which actually explains this area.
    Thanks
    Chris

  • ReportDocument.ExportToStream raises "Missing Parameter Values" exception

    Hi,
    I have a web app built using VS 2008 which runs many reports developed in CR 2008. Most of these reports take parameters and many have embedded subreports. Many of the reports can either be viewed directly or e-mailed. For the latter, I use ReportDocument.ExportToStream(ExportFormatType.PortableDocFormat) to export a PDF file which then gets attached to the e-mail.
    One set of reports works fine when viewed directly, but raises a "Missing Parameter Values" exception when I try to generate the PDF.  All the other reports, seemingly similar in most respects, including the number and type of parameters, work fine when calling ExportToStream.
    Here is the really strange part: the exception is spurious. I wrapped the whole thing in a try/catch block to better examine the exception, hoping to find which parameter value is actually missing.  I could not identify the missing parameter value, but once I handled the exception, the report runs fine and converts to PDF.
    Any hints as to what could be causing this problem?  It seems like a really bad hack to solve the problem using a try/catch in this way.
    Thanks.
    Dan

    Thanks for the quick response. Your code was very instructive, but did not help yet.  Here is what I have:
    (This response is too long for a single post, so I will split it and finish in the next post.)
    ReportDocument rptDoc = new ReportDocument();
    rptDoc.Load(strReportSourceFolder + strReportName + ".rpt");
    rptDoc.SetParameterValue("ClientID", lngKeyFieldID);
    rptDoc.SetParameterValue("Role", "Client");
    This is followed by an amazing chunk of code, provided to me by a guy at SAP Tech Support, who said it was necessary to pass database credentials programatically.  It iterates the tables in the ReportDocument and individually sets the LogonInfo. (I say "amazing" because it astounds me you have to jump through such hoops for something that should be routine and easy.)  The commented lines are just to help in debugging.
    ConnectionInfo conn = new ConnectionInfo();
    conn.ServerName = "myServer";
    conn.DatabaseName = "myDB";
    conn.UserID = "myUserID";
    conn.Password = "myPassword";
    Tables tables = rptDoc.Database.Tables;
    foreach (Table table in tables)
      //string str= table.TestConnectivity().ToString());
      TableLogOnInfo tableLogonInfo = table.LogOnInfo;
      tableLogonInfo.ConnectionInfo = conn;
      table.ApplyLogOnInfo(tableLogonInfo);
      //table.Location = table.Location;                        
    This is followed by the viewer stuff:
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    CrystalReportViewer1.DisplayToolbar = true;
    CrystalReportViewer1.HasToggleGroupTreeButton = false;
    CrystalReportViewer1.HasToggleParameterPanelButton = false;
    CrystalReportViewer1.Page.Title = strReportName;
    CrystalReportViewer1.ReportSource = rptDoc;
    Up to here, it works fine, displaying the report.  If the report is also to be e-mailed, the following is executed:
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      //  export to PDF, then mail that
      SmtpClient client = new SmtpClient();
      MailAddress from = new MailAddress(ConfigurationManager.AppSettings["ReportMailFrom"].ToString());
      MailMessage message = new MailMessage();
      message.From = from;
      message.SubjectEncoding = System.Text.Encoding.UTF8;
      message.Subject = "E-mail BackOffice report: " + strReportName;
      try
        foreach(ParameterField field in rptDoc.ParameterFields)
          Logger.LogEvent("test", "", field.ToString(), "Trace", null, true, true);
          Logger.LogEvent("test", "", "Name: " + field.Name, "Trace", null, false, false);
          Logger.LogEvent("test", "", "PromptText: " + field.PromptText, "Trace", null, false, false);
          Logger.LogEvent("test", "", "IsOptionalPrompt: " + field.IsOptionalPrompt, "Trace", null, false, false);
        MemoryStream memStream = (MemoryStream)rptDoc.ExportToStream(ExportFormatType.PortableDocFormat);
        Attachment data = new Attachment(memStream, MediaTypeNames.Application.Pdf);
        ContentDisposition disposition = data.ContentDisposition;
        disposition.CreationDate = DateTime.Now;
        disposition.ModificationDate = DateTime.Now;
        disposition.FileName = strReportName + ".pdf";
        disposition.DispositionType = DispositionTypeNames.Attachment;
        message.Attachments.Add(data);
      catch (Exception ex)
        Logger.LogEvent("error", "Page_Load", strReportName + " Exception: " + ex.Message, "Trace", null, true, true);
      //  ...  do the rest of the stuff to create & send the e-mail
    (The rest of this message will be in the following post.  Sorry it is so long.)

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