winform实现拖动文件到窗体上的方法

private void Form5_Load(object sender, EventArgs e){ this.AllowDrop=true;}private void Form5_DragEnter(object sender, DragEventArgs e){ if (e.Data.GetDataPresent(DataFormats.FileDrop)) {  string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);  foreach (string f in files)  {   listBox1.Items.Add(f);  } }}