Question

I have a team program underway and my part is to add the ability to load either a single image or (more likely) a folder of images and them save them so that other aspects the program will be able to access them.

Here are my actual questions:

1. I need an example on how to display a Open File or Open Folder dialog.
2. An example of the best way to store all of the images in the folder.

Note: I will need to eventually display these images but it will be after another part of the program reorders them based on color.

Answer 1

Somthing like this maybe:

     Dictionary<string, Bitmap> images = new Dictionary<string, Bitmap>();

        string[] extensions = new string[]{".BMP",".JPG",".GIF",".PNG"};
        var fd = new System.Windows.Forms.FolderBrowserDialog();
        if (fd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        {
            foreach (var file in Directory.GetFiles(fd.SelectedPath).Where(f => extensions.Contains(Path.GetExtension(f).ToUpper())))
            {
                images.Add(Path.GetFileNameWithoutExtension(file), new Bitmap(file));
            }
        }

Or Open File:

     var fd = new System.Windows.Forms.OpenFileDialog();
     fd.Filter = "Image Files(*.BMP;*.JPG;*.GIF;*.PNG)|*.BMP;*.JPG;*.GIF;*.PNG";
     if (fd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
     {
         images.Add(Path.GetFileNameWithoutExtension(fd.FileName,new Bitmap(fd.FileName));
     }