User-2016200658 posted
Mark, thanks for your quick response. I guess the problem is on "application_onstart", only the first person visit the web site get the error. It's not consistency and difficult to reproduce the problem.
I am more familiar with personal web site starter kit. it has the same dbnull error on textbox. I think a requirefiled validation will get rid of this. wonders why microsoft didn't make it bullet proof before it shipped.