We are getting the attached error (Cannot perform '=' operation on System.String and System.Int32)  when performing BO.NewRow() on a child business object. Strange thing is that it works fine in our development and testing environment but not at one of our customer sites.  (I attached the stacktrace).

Any Idea's why we are getting this error.

Thanks,

Tim

The problem has been resolved.

I'm glad you got it fixed... was it something firing from a changed handler that was causing the issue, or maybe something in your SetDefaultValues?

neither... We built a helper function to create SQL Queries and filter expression in a way that makes it immume to SQL injection attacks. We assumed that 'IsNumeric' returned True if its parameter was of a numeric type, however we discovered it also returned True if it is a string or char that is entirely of numeric form. We added the appropriate 'type' checks which solved our problem.