CODEWITHSUNDEEP
c#wpfxamldata-bindingsingleton
Safe
Safe

Reputation: 373

Wpf - BitmapImage data binding Singleton

I have a singleton BitmapImage and I'm trying to bind it to my xaml view and i got :

The calling thread cannot access this object because it is owned by another thread

Here my code :

BitmapImage bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.UriSource = new Uri(fullFilePath, UriKind.Absolute);
bitmap.EndInit();
MySingleton.Instance.image = bitmap;

My singleton : 

private BitmapImage _image;
  public BitmapImage image
  {
     get { return _image; }
     set
     {
       _image = value;
       PropertyChanged(this, new PropertyChangedEventArgs(nameof(image)));
     }
  }

And my xaml :

<Image Source="{Binding image, Source={x:Static module:MySingleton.Instance}}" Name="TestImage" HorizontalAlignment="Center"  Height="Auto" VerticalAlignment="Center" Width="Auto"></Image>

I tried bitmap.Freeze(); but got the error:

Freezable cannot be frozen

I don't know if it's meanless or not but I instanciate the bitmap in a websocket onmessage event.

Upvotes: 0

Views: 158

Answers (1)

Lupu Silviu
Lupu Silviu

Reputation: 1165

Your code has to be placed inside a Dispatcher.

Application.Current.Dispatcher.Invoke(() =>
{
  //(your code here)
});

or 

Application.Current.Dispatcher.BeginInvoke((Action)(() =>
{
   //(your code here)
}));

Upvotes: 1

Related Questions