I am developing reports on Crystal Reports XI R2, VS.NET 2005 , SQL Server 2000, C#.
I am getting Database Logon Failed when I click on a drill down link in the report. It works if I click on the drill down link with in a minute. But if I wait for a minute and click on drill down, I am getting Database Logon Failed
Error in Crystal report viewer14
Object reference not set to an instance of an object
Any help would be greatly appreciated.