>>If it's definitely down to the similar names ('Accttype' and 'Accttype') then it is a bug. Again: you can download the EF source libraries and step into the code. That should allow you to identify exactly where it goes wrong. >> > >Viv, > >How exactly can I download the EF source libraries? > >Thanks again. > >BTW, I posted this problem in EF issues in case someone wants to vote for it > >https://entityframework.codeplex.com/workitem/2541
In general for .NET in VS : Tools/Option/Debugging/Symbols.