http://support.microsoft.com/kb/307966/ja

[[コントロールの AllowDrop を true にする]]

@DIV
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace MyApp
{
	public partial class Form1 : Form
	{
		public Form1()
		{
			InitializeComponent();

			[[this.出力場所.DragDrop += new DragEventHandler(this.出力場所_DragDrop);
			this.出力場所.DragEnter += new DragEventHandler(this.出力場所_DragEnter);]]

		}

		private void 参照ボタン_Click(object sender, EventArgs e)
		{
			FolderBrowserDialog fd = new FolderBrowserDialog();

			DialogResult ret = fd.ShowDialog();
			if (ret == DialogResult.OK)
			{
				this.出力場所.Text = fd.SelectedPath;
			}

			fd.Dispose();
		}

		private void 実行_Click(object sender, EventArgs e)
		{
			
			File.Copy(Application.ExecutablePath, this.出力場所.Text + @"\test.exe");
		}

[[		private void 出力場所_DragEnter(object sender, DragEventArgs e)
		{
			if (e.Data.GetDataPresent(DataFormats.FileDrop)) {
				e.Effect = DragDropEffects.All;
			}
			else {
				e.Effect = DragDropEffects.None;
			}
		}

		private void 出力場所_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
		{
			string[] s = (string[])e.Data.GetData(DataFormats.FileDrop, false);
			this.出力場所.Text = s[0];
		}]]


	}
}
@END