Licensing changed after upgrade from VS2003 to VS2005

Post by **Marc** » Fri Jun 08, 2007 9:22 am

Hello alexs,

Do you have any feedback on use of the assembly that you have for tests?

Regards,
Marc

Post by **Marc** » Wed Jun 13, 2007 10:02 pm

Hello alexs,

Summary of findings:

There is a change between VSNET2003 and VSNET2005 that requires that a reference exist in the project where a license is being declared in licenses.licx. As you observed that change has caused that a licensed assembly can't be plugged between project assemblies unless a reference exist for that assembly at each location where it is intended to be used.

From a positive viewpoint VSNET2005 has introduced support for the second variable in GetSavedLicenseKey(), allowing target assemblies to be passed as arguments.

Based on that change a TeeChart license modification has been introduced to support projects where a TeeChart reference can't be placed at each target assembly.

Concluding tests we recommend that version as the best-fit TeeChart version for your application architecture.

Regards,
Marc Meumann

cvconcrk · Post by **cvconcrk** » Mon Dec 31, 2007 4:14 pm

Hello Marc- we have a similar problem to what is described in this thread (we are using the TeeChart in a plug-in/.dll that is referenced by an unmodifiable .exe that doesn't use TeeChart). With earlier versions of TeeChart we had no issues, but we are now getting this "object reference not set" error with TeeChart v2. Can we also try out this new .dll that you mentioned in your last post? Thanks.

FYI, here's the beginning portion of the error message we're getting:

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at Steema.TeeChart.FrAccessProvider.GetLicense(LicenseContext context, Type type, Object instance, Boolean allowExceptions)
at System.ComponentModel.LicenseManager.ValidateInternalRecursive(LicenseContext context, Type type, Object instance, Boolean allowExceptions, License& license, String& licenseKey)
at System.ComponentModel.LicenseManager.ValidateInternal(Type type, Object instance, Boolean allowExceptions, License& license)
at System.ComponentModel.LicenseManager.Validate(Type type, Object instance)
at Steema.TeeChart.Chart..ctor()
at Steema.TeeChart.TChart..ctor()

Narcís · Post by **Narcís** » Wed Jan 02, 2008 9:20 am

Hello cvconcrk,

I'm afraid the plug-in license version is only available with TeeChart for .NET v3. However we can provide you with an unlocked version of TeeChart for .NET v2. Would you be so kind to send an e-mail to sales@steema.com explaining your problem and requesting the plug-in/unlocked TeeChart version?

Thanks in advance.