Interesting Type difference in .NET 4.0 when using DataBinding

Comments (3) | Share

Consider this common construct that you and I have thrown into ASPX pages for years now:

<%# DataBinder.Eval (Container.DataItem, "EmployeeID") %>

In .NET 3.5.1 and older it returns -- tada -- a string.  No mystery there.  But in .NET 4.0 it returns the same type as the underlying data type -- which in this case for me was a nullable int.  Interesting, no?