EF (entity framework) usage of “using” statement

Question

I have a project on MVC. We chose EF for our DB transactions. We created some managers for the BLL layer. I found a lot of examples, where \"using\" statement is us

Answer 1

I think you will find many suggesting this style of pattern. Not just me or Henk DBContext handling

• Yes, Ideally Using statements for DBContext subtypes
• Even better Unit Of Work patterns that are managed with Using, that have a context and dispose the context Just 1 of many UoW examples, this one from Tom Dykstra
• The Unit Of Work Manager should be New each Http request
• The context is NOT thread safe so make sure each thread has its own context.
• Let EF cache things behind the scenes.
• Test Context creation times. after several Http request. Do you still have a concern?
• Expect problems if you store the context in static. any sort of concurrent access will hurt and if you are using parallel AJAX calls, assume 90+% chance of problems if using a static single context.

For some performance tips, well worth a read