Question

I am writing a service layer application, which interacts with database using Entity framework.

I am enclosing my individual “unit-of-work” in a using block, where I initialise my data context.

However I need to throw some exceptions, to convey database errors to applications, which are using my service application. So I am doing something like this:

using (dbcontext = new DbContext())
{
 throw new Exception("Error while Saving data");
}

Can anyone confirm if this is Ok? Will Entity framework data context be disposed off correctly even after an exception is thrown?

Answer 1

Yes. A using block is converted to a try/finally block when compiling with disposing logic inside the finally block.

However your exception will not be thrown outside if the Dispose method throws an exception.