Updating an ObservableCollection in a separate thread

by

.Net 4.5 provides a solution within the BindingOperations class.

You can now use the BindingOperations.EnableCollectionSynchronization method as follows:

private readonly object _personCollectionLock;
private ObservableCollection<Person> _personCollection;

public ObservableCollection<Person> PersonCollection
{
  get { return _personCollection; }
  set
  { 
    _personCollection = value;
    BindingOperations.EnableCollectionSynchronization(_personCollection, _personCollectionLock);
  }

I have only just tried this in my development environment but everything seems to be working correctly now when I update the collection from a background thread.

There is a more in-depth discussion of this solution at: http://10rem.net/blog/2012/01/16/wpf-45-observable-collection-cross-thread-change-notification

The MSDN entry for this method is at: https://msdn.microsoft.com/en-us/library/system.windows.data.bindingoperations.enablecollectionsynchronization(v=vs.110).aspx

More Related Contents:

  1. Accessing UI (Main) Thread safely in WPF
  2. Task continuation on UI thread
  3. The calling thread cannot access this object because a different thread owns it [duplicate]
  4. The calling thread cannot access this object because a different thread owns it.WPF [duplicate]
  5. Error: Must create DependencySource on same Thread as the DependencyObject even by using Dispatcher
  6. Maximum number of threads in a .NET app?
  7. How to update UI from another thread running in another class
  8. Attempted to read or write protected memory. This is often an indication that other memory is corrupt
  9. How to bind an enum to a combobox control in WPF?
  10. Re-entrant locks in C#
  11. Getting the thread ID from a thread
  12. Multiple Parallel.ForEach loops in .Net
  13. What does SynchronizationContext do?
  14. How to put a task to sleep (or delay) in C# 4.0?
  15. Bind TextBox on Enter-key press
  16. Is it OK to use a string as a lock object?
  17. Monitor vs lock
  18. Binding objects defined in code-behind
  19. How to select only the records with the highest date in LINQ
  20. Proper way to Dispose of a BackGroundWorker
  21. EF Data Context – Async/Await & Multithreading
  22. When is CanExecute called?
  23. Dynamically Updating TabControl Content at Runtime
  24. Get sum of two columns in one LINQ query
  25. Should thread-safe class have a memory barrier at the end of its constructor?
  26. CanExecuteChanged event of ICommand
  27. ReaderWriterLock vs lock{}
  28. Prism assembly reference failure: System.Windows.Interactivity
  29. Get the item doubleclick event of listview
  30. How to Print Preview when using a DocumentPaginator to print?

Leave a Comment