Convert Binary File To image

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when i convert binary data to file and execute the file i see this error for graphic file
Windows Photo Viewer can't open this picture because the file appears to be damaged or corrupted

this is my method File.WriteAllBytes(path, fileContent);

Posted 14-Apr-14 20:43pm

Mahdi_kishislan

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[no name] 15-Apr-14 2:51am

What were you expecting? What is fileContent? Not enough code here to make any sense.

Mahdi_kishislan 15-Apr-14 3:01am

file content is byte array variable (byte[]) that contain my binary data.
this is my method that convert data from sql to bye[] in c#
public static byte[] ObjectToByteArray(Object obj)
{
if (obj == null)
return null;
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, obj);
return ms.ToArray();
}

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Bernhard Hiller · Answer 1 · 2014-04-14T22:10:00

Never tried it this way...
I think that the "memory dump" created by your serialization method (ObjectToByteArray) returns the bytes in a different format than Bitmap.Save(stream, format).
Hence I'd suggest you de-serialize the image by reverting the the steps of your serialization method, and then write the image to disk with Bitmap.Save(filename, format).