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Pool Threading with changing parameters

emailstuff(5) is changing with the x but not changing in the threads.

        Dim emailstuff() As String = {"Name", "campusbox", "recievedate", "Shippingmethod", "Trackingnumber", "Packagetype", "Noticelevel", "", "emailaddress", "originator"}
        For x As Integer = 1 To 10
            System.Threading.ThreadPool.QueueUserWorkItem(AddressOf sendEmail, emailstuff)
            emailstuff(5) = x
        Next

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Kyle Abrahams, PMP

Pass EmailStuff(x) as the parameter:

For x As Integer = 1 To 10
            System.Threading.ThreadPool.QueueUserWorkItem(AddressOf sendEmail, emailstuff(x))            
        Next

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Millkind

ASKER

I want each thread to have different parameters. Not just send the on parameter over and over. Also the sub requires an array not a string.

Kyle Abrahams, PMP

Change sendEmail to accept a string and just pass emailstuff(x)

this will change every time because of the array with the counter.

The other thing you can do is pass in X and reference the array globally, but I wouldn't go that route.

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it_saige

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Millkind

ASKER

All the items in emailstuff will be different in each thread. I only changed the 5th one for this as a test to see how to do it. I am new to threading and the articles and tutorials were very confusing. I believe i understand what a thread pool is in theory but not in practice. Like why can't I change the input for each pass in the for loop? Im going to work with the Module now.

Millkind

ASKER

With a little tweaking it works wonderfully. Also by doing the tweaking I have learned a little bit about threading. It is easier to see it done then read about it sometimes.

Thanks,