将文件直接拖到不受控制的表单上

Question

是否可以将文件直接拖到窗体上，还是必须放在窗体上的控件上？我已经使用下面的代码很长一段时间了，但这需要你拖到ListView

public Form1()
{
  InitializeComponent();
  this.Load += new EventHandler(Form1_Load);
}
void Form1_Load(object sender, EventArgs e)
{
  this.listView1.AllowDrop = true;
  this.listView1.Columns.Add("File name");
  this.listView1.Dock = DockStyle.Fill;
  this.listView1.SmallImageList = this.imageList1;
  this.listView1.View = View.Details;
  this.listView1.DragEnter += new DragEventHandler(listView1_DragEnter);
  this.listView1.DragDrop += new DragEventHandler(listView1_DragDrop);
}
void listView1_DragEnter(object sender, DragEventArgs e)
{
  if (e.Data.GetDataPresent("FileDrop") &&
      (e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy)
{
    e.Effect = DragDropEffects.Copy;
}
}

void listView1_DragDrop(object sender, DragEventArgs e)
{
    if (e.Data.GetDataPresent("FileDrop") &&
    (e.AllowedEffect & DragDropEffects.Copy) == DragDropEffects.Copy)
    {
        string[] filePaths = (string[])e.Data.GetData("FileDrop");
        ListViewItem[] items = new ListViewItem[filePaths.Length];
        string filePath;
        for (int index = 0; index < filePaths.Length; index++)
        {
          filePath = filePaths[index];
          if (!this.imageList1.Images.Keys.Contains(filePath))
          {
            this.imageList1.Images.Add(filePath,
            Icon.ExtractAssociatedIcon(filePath));
          }
        items[index] = new ListViewItem(filePath, filePath);
    }
      this.listView1.Items.AddRange(items);
  }
}

Answer 1

this.DragDrop += new DragEventHandler(form_DragDrop);