c# - Images are rotated in PictureBox

Question

As the question implies, when I load an image into a pictureBox (using dialog box), it doesn't appear as its original look. in this screen shoot, the image on the left is the one I loaded into the pictureBox (on the right).

Trying to know what causes this I draw an image using Paint app and rotated it using Windows Photo Viewer, the rotated image loaded as it is (rotated), that is it, some pictures are just fine loaded, and others are rotated! and I can't figure out why?!

Answer 1

When you view an image in Windows Photo Viewer, it automatically corrects image orientation if it has an Exif orientation data. PictureBox doesn't have built-in support for such functionality. You can create a custom PictureBox which shows images correctly even if they have orientation data:

using System.Linq;
using System.Windows.Forms;
using System.Drawing;
using System.ComponentModel;

public class MyPictureBox : PictureBox
{
    private void CorrectExifOrientation(Image image)
    {
        if (image == null) return;
        int orientationId = 0x0112;
        if (image.PropertyIdList.Contains(orientationId))
        {
            var orientation = (int)image.GetPropertyItem(orientationId).Value[0];
            var rotateFlip = RotateFlipType.RotateNoneFlipNone;
            switch (orientation)
            {
                case 1: rotateFlip = RotateFlipType.RotateNoneFlipNone; break;
                case 2: rotateFlip = RotateFlipType.RotateNoneFlipX; break;
                case 3: rotateFlip = RotateFlipType.Rotate180FlipNone; break;
                case 4: rotateFlip = RotateFlipType.Rotate180FlipX; break;
                case 5: rotateFlip = RotateFlipType.Rotate90FlipX; break;
                case 6: rotateFlip = RotateFlipType.Rotate90FlipNone; break;
                case 7: rotateFlip = RotateFlipType.Rotate270FlipX; break;
                case 8: rotateFlip = RotateFlipType.Rotate270FlipNone; break;
                default: rotateFlip = RotateFlipType.RotateNoneFlipNone; break;
            }
            if (rotateFlip != RotateFlipType.RotateNoneFlipNone)
            {
                image.RotateFlip(rotateFlip);
                image.RemovePropertyItem(orientationId);
            }
        }
    }
    [Localizable(true)]
    [Bindable(true)]
    public new Image Image
    {
        get { return base.Image; }
        set { base.Image = value; CorrectExifOrientation(value); }
    }
}