WPF and Silverlight are all about images and styling and the one thing i end up doing a lot is extracting images from Databases, websites and showing them on a screen…and the code to do this is really hard to remember. So keep this code in your safe!!
- Get Image from a byte[]: If your image is stored in the DB you will generally get it back as a binary. You can get the byte array by doing a ToArray() on the binay
public BitmapImage ImageFromBuffer(Byte[] bytes) {
MemoryStream stream = new MemoryStream(bytes);
BitmapImage image = new BitmapImage();
image.SetSource(stream);
stream.Close();
return image;
}
- Get Image from a Url
public BitmapImage GetImageFromUrl(string imageUrl )
{
const int BYTESTOREAD = 100000;
WebRequest myRequest = WebRequest.Create(new Uri(imageUrl, UriKind.Absolute));
myRequest.Timeout = -1;
WebResponse myResponse = myRequest.GetResponse();
Stream ReceiveStream = myResponse.GetResponseStream();
BinaryReader br = new BinaryReader(ReceiveStream);
MemoryStream memstream = new MemoryStream();
byte[] bytebuffer = new byte[BYTESTOREAD];
int BytesRead = br.Read(bytebuffer, 0, BYTESTOREAD);
while (BytesRead > 0)
{
memstream.Write(bytebuffer, 0, BytesRead);
BytesRead = br.Read(bytebuffer, 0, BYTESTOREAD);
}
BitmapImage image = new BitmapImage();
image.BeginInit();
memstream.Seek(0, SeekOrigin.Begin);
image.StreamSource = memstream;
image.EndInit();
return image
}
Hope if helps make your UI prettier!!!
Cennest!