UWP BitmapImage SetSource from MemoryStream hangs

Question

In my UWP app i store images in an SQLite db in form of byte[]. Then as i retrieve my objects from the db i bind them to a GridView data template which has an Image control.

Answer 1

I've had an issues printing images loading from RandomAccessStreams until I found this. They load fine in the app for visual but would hang the UI when generating print previews dynamically.

Conversion works perfectly, cheers.

private BitmapImage ConvertImage(string str) {
byte[] imgData = Convert.FromBase64String(str);
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
    using (DataWriter writer = new DataWriter(ms.GetOutputStreamAt(0)))
    {
        writer.WriteBytes(imgData);
        writer.StoreAsync.GetResults();
    }
    BitmapImage result = new BitmapImage();
    result.SetSource(ms);
    return result;
}}