Error: Must create DependencySource on same Thread as the DependencyObject even by using Dispatcher

by

BitmapImage is DependencyObject so it does matter on which thread it has been created because you cannot access DependencyProperty of an object created on another thread unless it’s a Freezable object and you can Freeze it.

Makes the current object unmodifiable and sets its IsFrozen property to true.

What you need to do is call Freeze before you update Image:

bi.BeginInit();
bi.StreamSource = ms;
bi.EndInit();
bi.Freeze();

Dispatcher.CurrentDispatcher.Invoke(() => Image = bi);

as pointed out by @AwkwardCoder here is Freezable Objects Overview

More Related Contents:

  1. Where is the Application.DoEvents() in WPF?
  2. Accessing UI (Main) Thread safely in WPF
  3. How to bind an enum to a combobox control in WPF?
  4. WPF Application that only has a tray icon
  5. Task continuation on UI thread
  6. Bind TextBox on Enter-key press
  7. The calling thread cannot access this object because a different thread owns it [duplicate]
  8. Updating an ObservableCollection in a separate thread
  9. Passing an enum value as command parameter from XAML
  10. The calling thread cannot access this object because a different thread owns it.WPF [duplicate]
  11. Single click edit in WPF DataGrid
  12. the name does not exist in the namespace clr-namespace
  13. DataGrid column width doesn’t auto-update
  14. WPF: The name does not exist in the namespace [duplicate]
  15. How to sort TreeView items using SortDescriptions in Xaml?
  16. Loading XAML XML through runtime?
  17. Accessing static fields in XAML
  18. How do I keep aspect ratio on scalable, scrollable content in WPF?
  19. How to refer to Embedded Resources from XAML?
  20. Having HierarchicalDataTemplates in a TreeView
  21. Could not load file or assembly ‘System.Windows.Interactivity’ [duplicate]
  22. Storyboards can’t find ControlTemplate elements
  23. Dynamically loading resource dictionary files to a wpf application gives an error
  24. Sort a wpf datagrid programmatically
  25. What’s the best way to pass event to ViewModel?
  26. WPF TextBlock memory leak when using Font
  27. The name “XYZ” does not exist in the namespace “clr-namespace:ABC”
  28. Setting the initial directory of an SaveFileDialog?
  29. How to open a web page from my application?
  30. ScrollViewer mouse wheel not scrolling

Leave a Comment