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PO
 

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  1. PO
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    <p>Here's a bit more:</p> <pre><code>private void RunTest() { // byte array that can be stored in DB byte[] iba; // image object to display in picturebox or used to save to file system. iba = ReadImage("D:\\Images\\Image01.jpg"); using (Image img = DeserializeImage(iba)) { SaveImage(img, "D:\\Images\\Image01_Copy.jpg"); } iba = ReadImage("D:\\Images\\Image02.png"); using (Image img1 = DeserializeImage(iba)) { SaveImage(img1, "D:\\Images\\Image02_Copy.png"); } iba = ReadImage("D:\\Images\\Image03.gif"); using (var img2 = DeserializeImage(iba)) { SaveImage(img2, "D:\\Images\\Image03_Copy.gif"); } MessageBox.Show("Test Complete"); } private static byte[] ReadImage(String filePath) { // This seems to be the easiest way to serialize an image file // however it would be good to take a image object as an argument // in this method. using (var fs = new FileStream(filePath, FileMode.Open)) { Int32 fslength = Convert.ToInt32(fs.Length); var iba = new byte[fslength]; fs.Read(iba, 0, fslength); return iba; } } private static Image DeserializeImage(byte[] imageByteArray) { using (var ms = new MemoryStream(imageByteArray)) { return Image.FromStream(ms); } } private static void SaveImage(Image imageObject, string filePath) { // I could only get this method to work for .png files. // imageObject.Save(filePath, imageObject.RawFormat); // This method works with .jpg, .png and .gif // Need to copy image before saving. using (Image img = new Bitmap(imageObject.Width, imageObject.Height)) { using (Graphics tg = Graphics.FromImage(img)) { tg.DrawImage(imageObject, 0, 0); } img.Save(filePath, img.RawFormat); } return; } </code></pre> <p>Note what you called Serializing is just reading the bytes in. Serializing is more what you're doing when you Save.</p> <p>I got rid of all the try/catch blocks. The best they were doing for you is telling you whether the problem happened in Reading, Saving or Deserializing. You can determine that from the stack trace, which you were destroying by only displaying ex.Message.</p> <p>You were also returning null on a serious exception, propagating failure.</p> <p>Beside that I agree with everything arbiter said.</p>
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    1. POFeedback on code to Serialize, Deserialize and Save Image
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    1. This table or related slice is empty.
    1. USJohn Saunders
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    1. VO
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      1. This table or related slice is empty.
      1. VTUpMod
    1. COHow about: `private byte[] ReadImage(string filePath) { return File.ReadAllBytes(filePath); }`
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      1. USLukeH
    2. COEven better. Didn't remember that one exists. Better idea since nothing is done with the stream in any case.
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      1. USJohn Saunders
 

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