Parallel.ForEach error HttpContext.Current

Question

this method - doDayBegin(item.BranchId) is taking long time to execute. So I am using Parallel.ForEach to execute it parallel. When I am using norm

Answer 1

You get the error because you are trying to get the HttpContext from a thread that is not running for the purpose of responding to a request.

The HttpContext.Current property uses the thread to identify which context to get, as the web server can run several threads to handle requests. As the Parallel.ForEach starts new threads, they will not be connected to a HttpContext.

You need to pass along the information that the method needs in the call to the method.