Subs in separate threads

[robertybob]

Hi,

I have an application that needs to run subs simultaneously - possibly 2 or 3 instances at a time - which might take a few seconds to process. The Sub requires variables so it cannot be a straightforward thread request.

I'm not sure a backgroundWorke r is the answer since I think it needs to finish running before it can be run again?

I found some code that uses threads but it completely crashes the entire application which shuts itself down. The application imports System.Threadin g etc.

The code used to run the sub is as follows.

Dim mySub As New Thread(DirectCast(Sub() processVal(thisval), ThreadStart))
mySub.Start()

The sub processVal runs some calcs and requests data from a 3rd party site.

Are there some extra requirements, imports etc that I should be aware of when using this type of threading procedure? Or a better way to have simultaneous subs running?

Thanks

EDIT: Is there maybe some kind of Async method to do this?

[robertybob]

Managed to stop the crash by adding the line

mySub.SetApartmentState(ApartmentState.STA)

however now have cross-threading issues so will have a look at that.

[robertybob]

ok - so the crash and cross-threading is ok but would still be good to know if there's a simple Async solution

[Frinavale]

Will this MSDN article help you: Calling Synchronous Methods Asynchronously?