BC4J/JSP: Missing navigation values in table tag

We are using BC4J view objects, overriding the native functionality of the view object to call PL/SQL APIs plus JSPs with UIX/Cabo tags to render output for BC4J.
Within the JSP the dataSource/view object rangesize is set to 6 and we are using the table tag.
When rendering a page for the first time, the table tag navigator correctly shows the number of records eg. 1-6 of 100 and navigation through the record set works perfectly eg. next set is 7-12 of 100.
If you exit that page (to display another page) then return to it, the table tag navigator in the first page contains no values and it is not possible to navigate through the record sets. This happens to all our pages when rendering them more than once.
The log file shows that on the initial rendering of the first page, the Estimated Row Count is set correctly, and continues to be correct whilst navigating through the data. When returning to the first page after showing another page, the Estimated Row Count is 0.

I assume this doesn't happen in the non-overriden view objects. Can you provide more information on what functionality you have overriden since getEstimatedRowCount() doesn't seem to work in your version of the view object?

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Email: [email protected]

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<%= new java.util.Date() %>
<jbo:ApplicationModule id="Mypackage1Module" definition="Project2.Mypackage1Module" releasemode="Stateful" />
<jbo:DataSource id="dept" appid="Mypackage1Module" viewobject="DeptView1" />
<jbo:DataSource id="emp" appid="Mypackage1Module" viewobject="EmpView3" />

Notice I bind this page to both master "DeptView1" and the linked detail "EmpView3"..

<jbo:Row id="deptrow" datasource="dept" action="find" rowkeyparam="deptrowkey" ></jbo:Row>
<jbo:ShowValue datasource="dept" dataitem="Dname" />
 
<table border="1">
<jbo:RowsetIterate datasource="emp" >
<tr>
<td><jbo:ShowValue datasource="emp" dataitem="Ename" />
</td>
<td><jbo:ShowValue datasource="emp" dataitem="Deptno" />
</td>
</tr>
</jbo:RowsetIterate>
</table>
</body>
</html>
<jbo:ReleasePageResources />
Hope this helps....
-Chris

Applet within a table tag.

Hi,
I have placed an applet within a <table> tag. The applet does not get executed. I see only blank space, even though the HTML source has the applet tag. If I remove the table tags and place the applet directly in <body>, then it works fine. So there isnt any problem with the codebase or anything.
Are there any specific rules as to inside which tags can the <applet> tag be embedded? I would apprecite any information regarding this.
Thanks,
RG

This is my html file:
<table>
 <tr>
 <td>
 <applet code="test" />
 </td>
 <td>
 <object ID='jsApplet' classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" >
 <param name="code" value="test.class" />
 </object>
 </td>
 <td>
 <DIV id="dvObjectHolder">Applet comes here</DIV>
 </td>
 </tr>
</table>
<script>
if(window.navigator.appName.toLowerCase().indexOf("netscape")!=-1){ // set object for Netscape:
 document.getElementById('dvObjectHolder').innerHTML = " <object ID='jsApplet' classid=\"java:test.class\"" +
 "height=\"0\" width=\"0\" onError=\"changeObject();\"" +
 ">" +
 "<param name=\"mayscript\" value=\"Y\">" +
 "</object>";
}else if(window.navigator.appName.toLowerCase().indexOf('internet explorer')!=-1){ //set object for IE
 document.getElementById('dvObjectHolder').innerHTML = "<object ID='jsApplet' classid=\"clsid:8AD9C840-044E-11D1-B3E9-00805F499D93\"" +
 " height=\"0\" width=\"0\" >" +
 " <param name=\"code\" value=\"test.class\" />" +
 " </object>"
</script>this is my applet
public class test extends java.applet.Applet implements Runnable{
 public test(){
 // run it as an applet or run it as an application
 new Thread(this).start();
 public void init(){
 public void run(){
 System.out.println("applet started");
 public static void main(String[] args) {
 // run it as an applet or run it as an application
 new test();
}I open the html file with IE6 and have no problem.

"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

BC4J/JSP: Missing navigation values in table tag

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