bitmapimage

I have problem with update listbox from view model class. I use Caliburn Micro framework. My scenario is here: I bind property of type bindableCollection on listbox: Code from view model: private BindableCollection<UserInfo> _friends; public BindableCollection<UserInfo> Friends { get { return _friends; } set { _friends= value; NotifyOfPropertyChange(()=>Friends); } } In view model I create fake service method wich return new fresh data as List and with this data I update property Friends which is bind on listbox. I call fake service method in dispatcher timer tick event every 3 seconds.

MSDN mentions support for PNG and JPG, but many people are trying setSource(file.bmp) and complaining about "Catastrophic failures". Can someone clarify this, is bmp supported or not ? And if not, what is the best way for displaying a bmp in silverlight ? BMP is not supported in Silverlight. BMP is a very old and not a very efficient format (compared with PNG & JPG) so they have not bothered to support it. Silverlight only supports JPG & PNG format images. The best way to display them is to convert them on the web server so they can be served up as PNGs. The webserver will have access to

I'm loading user images using Silverlight 3. Everything works fine and I can set the file stream to a BitmapImage and it gets rendered OK. The problem is that if I try to load something that's not an image (like a .exe that's been renamed to .png) Silverlight crashes with a System.Exception that says "Catastrophic failure". The MSDN documentation unhelpfully says that it should be so there msdn link and I should listen to the ImageFailed event (which never gets fired). Am I missing something there or is the library broken when loading from a stream? The code I've got loading the image from the

I'm using the following code trying to convert my BitmapImage to a byte[] so I can save it in my MS SQL Database. public static byte[] BufferFromImage(BitmapImage img) { if (img == null) return null; byte[] result = null; using (Stream stream = img.StreamSource) { if (stream != null && stream.Length > 0) { using (BinaryReader br = new BinaryReader(stream)) { result = br.ReadBytes((int)(stream.Length)); } } } return result; } Sadly this doesn't work as img.StreamSource is disposed when I try to access it in the if-statement, resulting in an exception "Cannot access a disposed file". My call: