CODEWITHSUNDEEP
.netreportingjasper-reportsikvm
Ahmed Khalaf
Ahmed Khalaf

Reputation: 1220

JasperReports in .Net over IKVM

I'm willing to use JasperReports in .Net.

I used IKVM.net to build DLLs needed for this, and translated a sample app.

But I get a NotImplementedExeption in C# (the equivalent code in Java works perfectly)

JasperPrint print = JasperFillManager.fillReport(jasperFileDialog.FileName, null, new JREmptyDataSource());

The method or operation is not implemented.

See stack trace below

Notes: IKVM version: 0.40.0.1 http://sourceforge.net/projects/ikvm/files/ikvm/0.40.0.1/ikvmbin-0.40.0.1.zip/download

Exception Stack Trace

at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(Map parameterValues)
   at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(Map parameterValues, JRDataSource ds)
   at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JasperReport jasperReport, Map parameters, JRDataSource dataSource)
   at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperReport jasperReport, Map parameters, JRDataSource dataSource)
   at net.sf.jasperreports.engine.JasperFillManager.fillReport(String sourceFileName, Map parameters, JRDataSource dataSource)
   at Jasper.Net.Form1.ExportButton_Click(Object sender, EventArgs e) in C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\Jasper.Net\Jasper.Net\Form1.cs:line 39
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.Run(Form mainForm)
   at Jasper.Net.Program.Main() in C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\Jasper.Net\Jasper.Net\Program.cs:line 18
   at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

Upvotes: 2

Views: 3945

Answers (1)

Nap
Nap

Reputation: 8266

Usually the class not found exception occurs when the Jasper Reports jar depends on another jar. For example if the jasperreport.jar uses another jar like log4net.jar, you first need to convert the dependent jar to dll. Then used the converted dll for linking during the conversion of the jasperreport. I had the same problem when converting Apache POI to dll.

Upvotes: 1

Related Questions