microsoft.public.dotnet.framework.aspnet.caching

Alvin Bruney [ASP.NET MVP]

8/26/2006 12:45:00 AM

you might find more specialized help for this in the crystal reports
newsgroup

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________________________
Warm regards,
Alvin Bruney [MVP ASP.NET]

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"Debi" <debi@nospam.com> wrote in message
news:689E0E36-32F3-4C84-A179-A1A747F9067E@microsoft.com...
> Hi,
> I tried to implement caching for a crystal report using the Cache
> object. Just assign to cache and set expiry. But as soon as the
> reportdocument is disposed in Page Unload, the cached report also becomes
> null. Can anyone help me please?
>
> Has anyone successsfully used a cached report. I don't see any good
> examples on caching. I tried to use ICachedreport but couldn't find any
> examples on setting parameters for the cached report.
> Any input is appreciated.
> Thanks,
> Debi
> *****************************************
> if ((ReportDocument)Cache["MyKey"]== null)
> {
> rep_doc.Load(sReportPath);
> rep_doc.Refresh();
> SetTargetParameterFields(ref rep_doc);
> SetDatabaseLogon(ref rep_doc);
> target_doc = rep_doc;
> Cache.Insert("MyKey", target_doc, null,
> DateTime.Now.AddMinutes(3), TimeSpan.Zero);
>
> }
> else
> {
> rep_doc = (ReportDocument)Cache["MyKey"];
> }
> ___________________________________________________________
> protected void Page_UnLoad(object sender, EventArgs e)
> {
> rep_doc.Close(); //this removes the cached report too!!!!
> rep_doc.Dispose();
> rep_doc = null;
>
> }