Error With Bound Control Causes redirection to 404 Error page instead of displaying error

[Bishop]

Any ideas on why this is happening or how I can fix it?

For instance if I forget to declare a SQL Variable and assign it a value
instead of telling me that it redirects to 404 page not found instead of
telling me the problem. I only get this with bound control errors and it
happens 100% of the time with bound control errors.

 

[Bishop]

For anyone who may have this problem, the solution I found was this:

I had to add the Custom Errors to my Web.Config. The weird thing is the
problem with not getting the errors was only with bound controls and it just
started happening, I don't remember having to do this in the past.

<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">

</customErrors>