// dragdrop.cs

using System;
using System.Drawing;
using System.WinForms;

public class DragDrop : Form {
	private ListBox listbox1;

	protected void listbox1_DragEnter(object s, DragEventArgs e) {
		e.Effect = DragDropEffects.All;
	}

	protected void listbox1_DragDrop(object s, DragEventArgs e) {
		if (e.Data.GetDataPresent(DataFormats.FileDrop)) {
			foreach (string fileName 
						in (string[])e.Data.GetData(DataFormats.FileDrop)) {
				listbox1.Items.Add(fileName);
			}
		}
	}

	public DragDrop() {
		this.Size = new Size(340, 480);
		this.Text = "ドラッグ＆ドロップ・サンプル";

		this.listbox1       = new ListBox();
		listbox1.Dock       = DockStyle.Fill;
		listbox1.AllowDrop  = true;
		listbox1.DragEnter += new DragEventHandler(listbox1_DragEnter);
		listbox1.DragDrop  += new DragEventHandler(listbox1_DragDrop);

		this.Controls.Add(listbox1);
	}

	public static void Main() {
		Application.Run(new DragDrop());
	}
}