What does the method StiReport.CreateReportInNewAppDomain do?

dsmeltz · Post by **dsmeltz** » Fri Feb 27, 2009 2:43 pm

How do you use CreateReportInNewAppDomain?

How do you use it along with the method StiReport.UnloadReportAppDomain?

I'm hoping it loads/runs the compiled report code in a separate app domain, but I'm still having memory issues.

When I try to use these 2 methods I get the following error:

Type 'Stimulsoft.Report.Dictionary.StiRestrictions' in assembly 'Stimulsoft.Report, Version=2008.2.300.0, Culture=neutral, PublicKeyToken=ebe6666cba19647a' is not marked as serializable.

Post by **Jan** » Sun Mar 01, 2009 3:14 pm

Hello,

Please don't use this methods. Please visit following link:

http://forum.stimulsoft.com/Default.aspx?g=posts&t=142

In this topic you can read how to avoid memory link.

Thank you.

dsmeltz · Post by **dsmeltz** » Mon Mar 02, 2009 6:30 am

Unfortunately for us, the referred post really isn't an option. We have too many customer generated custom reports to have them all be precompiled on disk. I guess I'll have to figure out a way to create/tear down my own app domain for loading/running stimul reports.

Post by **Jan** » Mon Mar 02, 2009 2:17 pm

Hello,

Unfortunately for us, the referred post really isn't an option. We have too many customer generated custom reports to have them all be precompiled on disk.

You can do this automatically.

I guess I'll have to figure out a way to create/tear down my own app domain for loading/running stimul reports.

Main problem with app doamin is speed of creation, transfering data (main problem) and transfering rendered report back. Can you say how you get data in report? If you load it from exernal source it have sense.

Thank you.

dsmeltz · Post by **dsmeltz** » Tue Mar 03, 2009 7:26 am

We pull data from a SQL database for our reports.

Yes it is slower, but it's the only reliable way of preventing dynamic Stimul Reports from hanging on to memory.

So what is the 'automatic' way of achieving app domain goodness?

Post by **Jan** » Tue Mar 03, 2009 1:20 pm

Hello,

Sorry i can't reproduce problem which you describe in first post. I have used following code:

Code: Select all

DataSet data = new DataSet();
            data.ReadXml("D:\\demo.xml");

            StiReport report = new StiReport();
            report.Load("d:\\simplelist.mrt");
            report.RegData(data);
            StiReport report2 = report.CreateReportInNewAppDomain();
            report2.Show(true);
            report.UnloadReportAppDomain();

In any case code of this methods is very simple:

Code: Select all

internal AppDomain reportDomain = null;

		public StiReport CreateReportInNewAppDomain()
		{
			AppDomainSetup appDomainSetup = new AppDomainSetup();
			appDomainSetup.ShadowCopyFiles = "false";
			appDomainSetup.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;
			AppDomain appDomain = AppDomain.CreateDomain(StiGuidUtils.NewGuid(), AppDomain.CurrentDomain.Evidence, appDomainSetup);
			
			StiReport report = appDomain.CreateInstanceAndUnwrap(this.GetType().Assembly.FullName, this.GetType().FullName)
				as StiReport;

			reportDomain = appDomain;

			report.LoadFromString(this.SaveToString());
            
			foreach (StiData data in this.DataStore)
			{
				report.RegData(data.Name, data.Data);
				report.DataStore[report.DataStore.Count - 1].ViewData = data.ViewData;
			}

			return report;
		}


		public void UnloadReportAppDomain()
		{
			if (reportDomain != null)
			{
				AppDomain.Unload(reportDomain);
				reportDomain = null;
			}
		}

Thank you.

dsmeltz · Post by **dsmeltz** » Tue Mar 03, 2009 1:34 pm

It looks like I was calling CreateReportInNewAppDomain too early. I see I have to call that method just before calling Show (Refresh in my case).

I'll rework my code and let you know how it works.

dsmeltz · Post by **dsmeltz** » Tue Mar 03, 2009 2:27 pm

It doesn't seem to work very well.

Here's what I'm doing:

_report is loaded with the stimul report:

Code: Select all

StiReport reportInAD = _report.CreateReportInNewAppDomain();
reportInAD.Render();
StiPdfExportService exportServicePDF = new StiPdfExportService();
exportServicePDF.ExportPdf( _report, outputFilename );
_report.UnloadReportAppDomain();

If I do the above, I don't get any exported documents, they contain no pages.

If I do this:

Code: Select all

StiReport reportInAD = _report.CreateReportInNewAppDomain();
reportInAD.Render();
StiPdfExportService exportServicePDF = new StiPdfExportService();
exportServicePDF.ExportPdf( reportInAD, outputFilename );
_report.UnloadReportAppDomain();

(Note I'm trying to use the app domain report, reportInAD, to do the export.)

I receive the following error:

Type 'Stimulsoft.Report.Components.StiPage' in assembly 'Stimulsoft.Report, Version=2008.2.300.0, Culture=neutral, PublicKeyToken=ebe6666cba19647a' is not marked as serializable

Post by **Jan** » Thu Mar 05, 2009 2:41 pm

Hello,

Export to Pdf use many native dlls imports. I really can't say how it will be work in other domain. Please try following code:

Code: Select all

string str;
StiReport reportInAD = _report.CreateReportInNewAppDomain();
reportInAD.Render();
str = reportInAD.SaveDocumentToString();
_report.UnloadReportAppDomain();
_report.LoadDocumentFromString(str);
_report.ExportDocument(StiExportFormat.Pdf, outputFilename );

Thank you.