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Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign

Posted By:      Posted Date: September 16, 2010    Points: 0   Category :ASP.Net
Using Visual Studio with MySQL.In my XSD dataset I created a query. It runs perfect. I can preview the data fine.In my BLL I wrote code (see below) to retrieve the query results and I'm getting...Using db As New dsDemoTableAdapters.DemoTableAdapter Dim dt As New DataTable dt = db.GetDemo(DemoId) ' ERROR HAPPENS HEREFailed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.Why would previewing the data work but in code it fails?Any ideas?

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