Loading/Saving images misorder

Question

I got a directory full of only PNG images (580 images). I load the images in memory with this function

private List<Bitmap> images = new List<Bitmap>();

foreach (String s in Directory.GetFiles(@"frames\", "*.png"))
     {
        images.Add(new Bitmap(s));
     }

But after loading if I try to save all the images to hdd with this:

System.IO.Directory.CreateDirectory("result");
for (int i = 0; i < images.Count; i++)
   {
      images[i].Save(Application.StartupPath + "\\result\\img" + i + ".png", ImageFormat.Png);
   }

Somes images are saved in the wrong order that they were before loading them to memory.

What might be the problem?

Please don't prefix your titles with "C#" and such. That's what tags are for. — John Saunders, Mar 14 '12 at 20:58
When the order matters, I try to avoid using `foreach` as strickly speaking, it doesn not guarantee an enumeration in the order you expect. However, I'm not sure this is the source of your problem. — remio, Mar 14 '12 at 20:59
Originally ordered by what measure - name, ext, modified date, creation date...? — hatchet - done with SOverflow, Mar 14 '12 at 21:00

score 2 · Accepted Answer · answered Mar 14 '12 at 20:56

2

If you need to have file names sorted - you need to do it by hand since order in which GetFiles returns file names is not guaranteed.

I.e. simply sort by name:

foreach (String s in Directory.GetFiles(@"frames\", "*.png").OrderBy(t=>t))
{
 ...
}

answered Mar 14 '12 at 20:56

Alexei Levenkov

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score 0 · Answer 2 · answered Mar 14 '12 at 21:03

0

visit this

http://www.codeproject.com/Articles/33310/C-Save-and-Load-Image-from-Database

answered Mar 14 '12 at 21:03

GANI

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Loading/Saving images misorder

2 Answers2