I'm trying to export a crystal report file that has already been formatted etc. All the code works except the subroutine adds just upwards of 2kb to mem usage and doesn't clean this afterwards. The memory is added when the report object is assigned. I know that the Get Object call doesn't work, and I don't know how to fix that either...just concentrate on the mem issue though.
Dim oCrystalApp As CRAXDRT.Application
Try
oCrystalApp = GetObject(, "CRAXDRT.ApplicationClass"
Catch ex As Exception
oCrystalApp = New CRAXDRT.Application
End Try
Dim report As CRAXDRT.Report
report = oCrystalApp.OpenReport(Ser
report.MorePrintEngineErro
report.EnableParameterProm
report.DiscardSavedData()
'SET REPORT PARAMETERS -- **(not included for scope of this question)
report.VerifyOnEveryPrint = True
report.ExportOptions.Forma
report.ExportOptions.Desti
report.Export(False)
report = Nothing
oCrystalApp = Nothing
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I use the get object to prevent creating multiple applicationsm there are a number of different reports that the user can print during one session so I wanted to try this as a resolve to the memory leak....although I don't know the proper class name to reference.
The file is exported to pdf just fine, all the data is there and the format is flawless. I don't know what the "1" does as the second parameter for the OpenReport function though. I inherited this program and am making modifications and generally cleaning up flaws like this one.
N-Dizzle
meh, I don't think it matters. I['m trying to convert all the crystal objects (the app and the report) to session objects as per a Crystal Decisions instruction manual I found does...we'll see if that helps. Hopefully they at least terminate when the session expires. Although I'm having a bit of trouble getting the session objects to work. Unless someone has a solid answer don't bother posting anything, memory leaks are a bitch.
N-Dizzle
Solution - The previous developer had used an older Crystal COM component. Once I changed to the library associated with CR9 the memory issue was solved...and explicitely calling the report.close method, which was not included in the older library.
I found a ton of documentation on the Crystal Reports web site, it took some digging because their web navigation/interface isn't entirely intuitive. Anyone with Crystal Reports problems should definitely check out their developers forum.
NateDizzle
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by: mlmccPosted on 2004-11-11 at 14:28:28ID: 12560495
I believe these
report = Nothing
oCrystalApp = Nothing
should be
set report = Nothing
set oCrystalApp = Nothing
Also you may need to unload and set the form/viewer to nothing.
mlmcc