.Net ramblings
# Wednesday, 09 March 2005
FIX: Crystal Reports error "Logon Failed" happens when viewer control is not in form server tag.

I just spent hours trawling the web trying to find out why my web forms app was giving me the following error:

  • CrystalDecisions.CrystalReports.Engine.LogOnException: Logon failed

I am using a Dataset so there is obviously no logging on necessary for a disconnected data source.  By chance, i noticed that there was no server form around the crystal report viewer control, so i put one in, and it worked.  That has got to be the most annoying error message i have ever come across.

Wednesday, 09 March 2005 16:03:21 (GMT Standard Time, UTC+00:00)  #    Comments [2]  Asp.Net