Skip to content

Tag: Visual Studio

Microsoft: Please allow Null values to be returned from strongly typed datasets!

Recently while working on an application created in Visual Studio 2005 (also applies to 2008) on the .NET 2.0 framework I noticed a strange error when running with live customer data. The error was, “Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints”: