asked on 8/5/2011

Another Parallel programming question VB.NET

So with your help I now have this working

Dim w As New Work
Parallel.ForEach(LstVendors, Sub(currentVendor)
'Dim w As New Work
w.DoWork(currentVendor)
End Sub)

What I really need now is a way to :
1 Use a queue to process,
2. Have a cancellation token available
3. Have a way to know when all tasks are completed.

Please only vb.net code. I can find csharp examples but have a very hard time converting them to vb.

Visual Basic.NET

Last Comment

nepaluz

8/5/2011

nepaluz

8/5/2011

re-write your Work class a backgroundworker class and utilize the backgroundworker's cancellation and completed events to fulfill 2 and 3 above. here's a good Microsoft walthrough
http://msdn.microsoft.com/en-us/library/ywkkz4s1.aspx

rutledgj

8/5/2011

ASKER

I was looking more for a way to use the task.waitall method

rutledgj

8/5/2011

ASKER

It appears that waitall requires a list of task to monitor which I don't see a way to do that using the foreach loop. Is there another way to do this not using foreach where the tasks can be saved to a collection?

ASKER CERTIFIED SOLUTION

nepaluz

8/5/2011

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rutledgj

8/5/2011

ASKER

Ok. So what I have is a class Vendor.

I have a LstVendor(of Vendor)

I have another class called Worker with a method called DoWork(v as Vendor)

I'm not sure how to substitute my items into your code where Object is.

nepaluz

8/5/2011

your class Worker is in this case replaced by the vendorsAction function. So I would just copy the DoWork method in there to the function.