Solution file (.sln) with Visual Studio 2005. To start using the sample, download and extract theĬode, and navigate into the "VS 2005 NetFX20Wrapper" folder. In this article is a sample application that performs work in aīackground thread. However, this article includes a COM wrapper for the BackgroundWorker component so that it can be used seamlessly from COM environments, such as Visual Basic 6. Normally, the BackgroundWorker component would only be available to. This lets yourĪpplication remain responsive while the operation progresses. Studio 2005 includes a BackgroundWorker component that makes itĮasy to put operations on a background thread. NET does support multi-threaded development, and Visual Provide any built-in mechanism for starting background threads. However, Visual Basic 6ĭoes not support developing multi-threaded applications, and does not To perform the operation on a background thread. You do not have the ability to call DoEvents throughout the operation, and so the application appears to hang.Īdvanced programming technique for handling long running operations is Running SQL statement, or are blocked waiting on an external resource, Smooth user experience, DoEvents must be called several times a Prevents the impression that the application has locked up. This allows the application to respond to events, and The traditional Visual Basic 6 technique to keep theĪpplication responding during a long running operation is to call DoEvents Getting Started with the Article Sample CodeĬan stop responding during long running operations, resulting inĭissatisfied users. The user to cancel the background task, and how to debug multi-threadedĬlick here to download the code sample for this article. This article shows you how to inform the user of progress, how to allow NET Framework 2.0 BackgroundWorker component from Visual Basic 6Īpplications to perform long running operations on background threads.
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