Load a large BitmapImage asynchronously

Question

I\'m trying to load a very large image (about 16000x7000 pixel) into a Material, and I\'ve tried to load it asynchronously. My first try was to create a task that loaded the

Answer 1

I'm not sure about this asynchronous scenario, but you would usually set BitmapCacheOption.OnLoad to force immediate caching to memory:

var bmp = await System.Threading.Tasks.Task.Run(() => 
{ 
    BitmapImage img = new BitmapImage(); 
    img.BeginInit(); 
    img.CacheOption = BitmapCacheOption.OnLoad; 
    img.UriSource = new Uri(path); 
    img.EndInit(); 
    ImageBrush brush = new ImageBrush(img); 
    ...
}