Creating a PDF-File from a report within a service

Hello,
I have to create PDF-Files from a report within a windows service.
My source is as follows (quick and dirty) using Microsoft Report Viewer 2012
Imports Microsoft.Reporting.WinForms
Dim reportViewer1 As New Microsoft.Reporting.WinForms.ReportViewer()
Dim objRDLC As New Microsoft.Reporting.WinForms.LocalReport()
reportViewer1.LocalReport.ReportEmbeddedResource = "MyApplication.MyReport.rdlc"
Dim deviceInfo As String = "<DeviceInfo>" & _
"<OutputFormat>PDF</OutputFormat>" & _
"<PageWidth>21cm</PageWidth>" & _
"<PageHeight>29.7cm</PageHeight>" & _
"<MarginTop>0.7cm</MarginTop>" & _
"<MarginLeft>0.7cm</MarginLeft>" & _
"<MarginRight>0cm</MarginRight>" & _
"<MarginBottom>0cm</MarginBottom>" & _
"</DeviceInfo>"
objRDLC.DataSources.Clear()
'Fill Report with data
reportViewer1.LocalReport.DataSources.Clear()
reportViewer1.LocalReport.DataSources.Add(New Microsoft.Reporting.WinForms.ReportDataSource("dsInfo", dt))
reportViewer1.RefreshReport()
'Output Report as File
Dim byteViewer As Byte() = reportViewer1.LocalReport.Render("PDF", deviceInfo)
Dim newFile As New FileStream("MyFileName", FileMode.Create)
newFile.Write(byteViewer, 0, byteViewer.Length)
newFile.Close()
'Clean up
newFile.Dispose()
objRDLC.DataSources.Clear()
objRDLC.Dispose()
reportViewer1.Dispose()
In most cases everything works fine.
But the service crashes after some/many reports (e.g. after 270 reports or after 1.400 reports). There is no fix number of reports that causes the service to crash.
The service crashes with the following error:
System.ComponentModel.Win32Exception (0x80004005): Fehler beim Erstellen des Fensterhandles.
   bei System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp)
   bei System.Windows.Forms.Control.CreateHandle()
   bei System.Windows.Forms.Control.get_Handle()
   bei System.Windows.Forms.Control.PointToScreen(Point p)
   bei System.Windows.Forms.ToolStripItem.TranslatePoint(Point fromPoint, ToolStripPointType fromPointType, ToolStripPointType toPointType)
   bei System.Windows.Forms.ToolStripDropDownItem.DropDownDirectionToDropDownBounds(ToolStripDropDownDirection dropDownDirection, Rectangle dropDownBounds)
   bei System.Windows.Forms.ToolStripDropDownItem.GetDropDownBounds(ToolStripDropDownDirection dropDownDirection)
   bei System.Windows.Forms.ToolStripDropDownItem.get_DropDownLocation()
   bei System.Windows.Forms.ToolStripDropDown.GetDropDownBounds(Rectangle suggestedBounds)
   bei System.Windows.Forms.ToolStripDropDown.SetBoundsCore(Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified)
   bei System.Windows.Forms.Control.SetBounds(Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified)
   bei System.Windows.Forms.Control.set_Size(Size value)
   bei System.Windows.Forms.ToolStripDropDown.AdjustSize()
   bei System.Windows.Forms.ToolStripOverflow.OnLayout(LayoutEventArgs e)
   bei System.Windows.Forms.Control.PerformLayout(LayoutEventArgs args)
   bei System.Windows.Forms.Control.PerformLayout()
   bei System.Windows.Forms.Control.ResumeLayout(Boolean performLayout)
   bei System.Windows.Forms.Control.ResumeLayout()
   bei System.Windows.Forms.ToolStrip.OnLayout(LayoutEventArgs e)
   bei System.Windows.Forms.Control.PerformLayout(LayoutEventArgs args)
   bei System.Windows.Forms.Control.PerformLayout()
   bei System.Windows.Forms.Control.ResumeLayout(Boolean performLayout)
   bei System.Windows.Forms.Control.SetBoundsCore(Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified)
   bei System.Windows.Forms.TextBoxBase.SetBoundsCore(Int32 x, Int32 y, Int32 width, Int32 height, BoundsSpecified specified)
   bei System.Windows.Forms.Control.System.Windows.Forms.Layout.IArrangedElement.SetBounds(Rectangle bounds, BoundsSpecified specified)
   bei System.Windows.Forms.ToolStripControlHost.OnBoundsChanged()
   bei System.Windows.Forms.ToolStripItem.SetBounds(Rectangle bounds)
   bei System.Windows.Forms.ToolStripItem.set_Width(Int32 value)
   bei Microsoft.Reporting.WinForms.ReportToolBar..ctor()
   bei Microsoft.Reporting.WinForms.ReportViewer.InitializeComponent()
   bei Microsoft.Reporting.WinForms.ReportViewer..ctor()
   bei DC5Warteschlange.clsReportTools.Druck(DataTable dt, String Reportname, String ReportDataset, String Drucker, String Format, String Datei)
   bei DC5Warteschlange.clsInfoQueue.Snotiz(String[] CallIDs, String Speicherort)
   bei DC5Warteschlange.Imail.InformationMailSenden(Int32 AID, DataTable& tmpDT)
Thank you very much....
Gernot

Unfortunately, it is not a piece of code that I can send. The SQL would be embedded inside Oracle Reports tool, and you would have the option to save the output of the report in PDF format.
Once you have the Oracle Report developed, you can execute it from command line prompt and save the output to a pdf file. In your case, the cursor would be embedded inside Oracle Report
Shakti
http://www.impact-sol.com
Developers of Guggi Oracle - Tool for DBAs and Developers

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