Loading data from List Box to Picture Box

Question

:)

I'm having a slight issue where I'm trying to view picture files from my computer on a picture box when I select them. The files appear in the list box but won't appear on the picture box when selected

This is my code

using System;                                                                   /    {
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void getPictures_Click(object sender, EventArgs e)
        {
            string[] filters = { "*.jpg", "*.jpeg", "*.png", "*.gif", "*.bmp" };

            var directory = new DirectoryInfo(@"C:\Pictures");

            var files = new List<FileInfo>();

            foreach (var filter in filters)
            {
                var results = directory.GetFiles(filter, SearchOption.AllDirectories);
                files.AddRange(results);
            }

            foreach (var file in files)
            {
                lbName.Items.Add(file.Name);
            }
            var dialog = new FolderBrowserDialog();
            var result = dialog.ShowDialog();

            if (result == DialogResult.OK)
            {
                string path = dialog.SelectedPath;
                lblText.Text = path;
            }
        }

        private void lbName_SelectedIndexChanged(object sender, EventArgs e)
        {
            pictureBox1.Image = Image.FromFile(((FileInfo)lbName.SelectedItem).FullName);
        }
        private void listBox1_MouseDoubleClick(object sender, MouseEventArgs e)
        {

            pictureBox1.Image = Image.FromFile(((FileInfo)lbName.SelectedItem).FullName);
        }
    }
}

I've tried a number of ways but this is the current code I'm working with. Anyone see where I'm going wrong? I'm still new to C# and don't know all the syntax off by heart but I'm getting there. Any help would be more than appreciated.

Milly

Answer 1

You do add the filename ( lbName.Items.Add(file.Name); ) to the listbox and afterwards cast it back to (FileInfo)lbName.SelectedItem . I checked your code with lbName being a listBox - did not work for me...

I changed your code to this one

    private void Form1_Load(object sender, EventArgs e)
    {
        getPictures(); // load pics from hdd
    }

    private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        pictureBox1.Image = Image.FromFile(((FileInfo)listBox1.SelectedItem).FullName);
    }

    private void getPictures()
    {
        string[] filters = { "*.jpg", "*.jpeg", "*.png", "*.gif", "*.bmp" };
        // change path to yours
        var directory = new DirectoryInfo(@"C:\Users\Public\Pictures\Sample Pictures");

        var files = new List<FileInfo>();

        foreach (var filter in filters)
        {
            var results = directory.GetFiles(filter, SearchOption.AllDirectories);
            files.AddRange(results);
        }

        foreach (var file in files)
        {
            listBox1.Items.Add(file);
        }
        // not quite sure what this code should do - so I comment out - as I do not think it is necessary for your question!
        //var dialog = new FolderBrowserDialog();
        //var result = dialog.ShowDialog();

        //if (result == DialogResult.OK)
        //{
        //    string path = dialog.SelectedPath;
        //    lblText.Text = path;
        //}
    }

And now it worked fine for me!

Answer 2

private void Form1_Load(object sender, EventArgs e) { getPictures(); } private void listBox1_SelectedIndexChanged(object sender, EventArgs e) { pictureBox1.Image = Image.FromFile(((FileInfo)listBox1.SelectedItem).FullName); pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage; }

    private void getPictures()
    {
        string[] filters = { "*.jpg", "*.jpeg", "*.png", "*.gif", "*.bmp" };
        string resulPath = ""; // var that will hold the path that returns on the user search
        // not quite sure what this code should do - so I comment out - as I do not think it is necessary for your question!
        var dialog = new FolderBrowserDialog();
        var result = dialog.ShowDialog();

        if (result == DialogResult.OK)
        {
            string path = dialog.SelectedPath;
            resulPath = path;
        }

        // Here i set the DirectoryInfo with the var resulPath
        var directory = new DirectoryInfo(@"" + resulPath + "");

        var files = new List<FileInfo>();

        foreach (var filter in filters)
        {
            var results = directory.GetFiles(filter, SearchOption.AllDirectories);
            files.AddRange(results);
        }

        foreach (var file in files)
        {
            listBox1.Items.Add(file);
        }
    }