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Former Member
Mar 31, 2004 at 10:15 AM

Problem with .Net connector losing connection


I'm writing my first .Net connector project (i.e. please be gentle with me!) - it's an ASP.NET page (using vb.NET) that connects to SAP and checks for failed jobs.

It works fine the first time it runs - calls the Bapi_Xmi_Logon then calls Bapi_Xbp_Job_Select.

I've got a timer set up that calls the subroutine that calls Bapi_Xbp_Job_Select every 30 seconds - but this fails after the first time with "Object reference not set to an instance of an object" - the only way to prevent this seems to be to call the logon routine every time.

Is this how it should work?, or should the logon remain until I explicitly close it?

Any help gratefully received, and sorry if I'm being thick!

Martin Dolphin

Bentley Motors Limited