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Loop through Multiple Processes Async

Posted on 2016-11-23
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Last Modified: 2016-11-24
Hello

I have a Program that needs to Generate pdf files (Invoices) for emailing.
I can have up to 50 pdf files to Generate per Email.
I want to loop through all the Files and Generate 5 Async until all files are generated.
i.e. I want 5 pdf files being generated continually until all the files have been generated. (As soon as one finishes I want another one to start - Keeping 5 Being generated)

How do I do this?

Currently I have the Below.

Dim fileList As New List(Of String)

        ' Code to Populate List

        For Each item In fileList
            'Generate PDF of Order
            Dim processToStart As New ProcessStartInfo
            processToStart.FileName = "C:\PDFProgram.exe"
            processToStart.Arguments = item
            processToStart.UseShellExecute = False
            Process.Start(processToStart).WaitForExit()
        Next

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Question by:p-plater
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2 Comments
 
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Accepted Solution

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Éric Moreau earned 2000 total points
ID: 41900363
you can use parallel.foreach as shown in https://msdn.microsoft.com/en-us/library/dd460720(v=vs.110).aspx
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Author Closing Comment

by:p-plater
ID: 41900956
Perfect

Thanks very much for that
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