Thread-Safe & Dispatcher-Safe Observable Collection for WPF

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submitted by DeanC(15) 2 years ago

A common problem in WPF (& Silverlight) development is when you are working with multiple threads that need to change a collection that is a binding source and implements INotifyCollectionChanged. Basically, the standard ObservableCollection<T> will only allow updates from the dispatcher thread, which means you need to write a lot of code for the worker threads to marshal changes onto the main message pump via the dispatcher. This can be a bit tedious, so I recently wrote a collection that performs all of the necessary marshalling internally, so users of this type do not have to be concerned about thread affinity issues.

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