How can I convert byte[] to BitmapImage?

Question

I have a byte[] that represents the raw data of an image. I would like to convert it to a BitmapImage.

I tried several examples I found but

Answer 1

I ran across this same error, but it was because my array was not getting filled with the actual data. I had an array of bytes that was equal to the length it was supposed to be, but the values were all still 0 - they had not been written to!

My particular issue - and I suspect for others that arrive at this question, as well - was because of the OracleBlob parameter. I didn't think I needed it, and thought I could just do something like:

DataSet ds = new DataSet();
OracleCommand cmd = new OracleCommand(strQuery, conn);
OracleDataAdapter oraAdpt = new OracleDataAdapter(cmd);
oraAdpt.Fill(ds)

if (ds.Tables[0].Rows.Count > 0)
{
    byte[] myArray = (bytes)ds.Tables[0]["MY_BLOB_COLUMN"];
}

How wrong I was! To actually get the real bytes in that blob, I needed to actually read that result into an OracleBlob object. Instead of filling a dataset/datatable, I did this:

OracleBlob oBlob = null;
byte[] myArray = null;
OracleCommand cmd = new OracleCommand(strQuery, conn);
OracleDataReader result = cmd.ExecuteReader();
result.Read();

if (result.HasRows)
{
    oBlob = result.GetOracleBlob(0);
    myArray = new byte[oBlob.Length];
    oBlob.Read(array, 0, Convert.ToInt32(myArray.Length));
    oBlob.Erase();
    oBlob.Close();
    oBlob.Dispose();
}

Then, I could take myArray and do this:

if (myArray != null)
{
   if (myArray.Length > 0)
   {
       MyImage.Source = LoadBitmapFromBytes(myArray);
   }
}

And my revised LoadBitmapFromBytes function from the other answer:

public static BitmapImage LoadBitmapFromBytes(byte[] bytes)
{
    var image = new BitmapImage();
    using (var stream = new MemoryStream(bytes))
    {
        stream.Seek(0, SeekOrigin.Begin);
        image.BeginInit();
        image.StreamSource = stream;
        image.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
        image.CacheOption = BitmapCacheOption.OnLoad;
        image.UriSource = null;
        image.EndInit();
    }

    return image;
}