Import and display images one by one

Question

I have a C # window form for importing and displaying multiple images.

I can import multiple images and display the first image, but I am having trouble displaying the images one by one.

Program stream: the user presses a button, then selects several images. After that, the first image should be displayed in the image window. When the user clicks the “next image” button, the next image should be displayed.

The first image can be displayed on the image panel, but has no idea about displaying them one at a time. Is there any configuration to achieve this goal or its implementation through coding. Thanks to everyone.

My coding:

public partial class Form2 : Form
{
    public Form2()
    {
        InitializeComponent();
        InitializeOpenFileDialog();
    }

    private void InitializeOpenFileDialog()
    {
        // Set the file dialog to filter for graphics files. 
        this.openFileDialog1.Filter =
            "Images (*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF|" +
            "All files (*.*)|*.*";

        // Allow the user to select multiple images. 
        this.openFileDialog1.Multiselect = true;
        this.openFileDialog1.Title = "My Image Browser";
    }

    private void SelectFileButton_Click(object sender, EventArgs e)
    {
        DialogResult dr = this.openFileDialog1.ShowDialog();
        if (dr == System.Windows.Forms.DialogResult.OK)
        {
            // Read the files 
            foreach (String file in openFileDialog1.FileNames)
            {
                // Create a PictureBox. 
                    PictureBox pb = new PictureBox();
                    Image loadedImage = Image.FromFile(file);
                    pb.Height = loadedImage.Height;
                    pb.Width = loadedImage.Width;
                    pb.Image = loadedImage;
                    flowLayoutPanel1.Controls.Add(pb);
            }

        }
    }
}

Answer 1

, .

PictureBox , . , .

:

PictureBox ( pictureBox1), , .

, :

private List<Image> loadedImages = new List<Image>();
private int currentImageIndex;

" " :

private void SelectFileButton_Click(object sender, EventArgs e)
{
    DialogResult dr = this.openFileDialog1.ShowDialog();
    if (dr == System.Windows.Forms.DialogResult.OK)
    {
        loadedImages.Clear();

        // Read the files 
        foreach (String file in openFileDialog1.FileNames)
        {
            // Create a PictureBox. 
            loadedImages.Add(Image.FromFile(file));
        }

        if (loadedImages.Count > 0)
        {
            currentImageIndex = 0;
            pictureBox1.Image= loadedImages[currentImageIndex];
        }
    }
}

, , "/" , :

// Mod function to support negative values (for the back button).
int mod(int a, int b)
{
    return (a % b + b) % b;
}

// Show the next picture in the PictureBox.
private void button_next_Click(object sender, EventArgs e)
{
    currentImageIndex = mod(currentImageIndex + 1, loadedImages.Count);
    pictureBox1.Image = loadedImages[currentImageIndex];
}

// Show the previous picture in the PictureBox.
private void button_prev_Click(object sender, EventArgs e)
{
    currentImageIndex = mod(currentImageIndex - 1, loadedImages.Count);
    pictureBox1.Image = loadedImages[currentImageIndex];
}