【C#】文件拖放到窗体

/// <summary>
        /// 窗体加载的时候，设置可以允许文件拖放
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_Load(object sender, EventArgs e)
        {
            //设置允许拖放属性
            this.AllowDrop = true;
        }

        /// <summary>
        /// 把文件拖到窗体时候发生的事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_DragEnter(object sender, DragEventArgs e)
        {
            //获取拖放数据
            if (e.Data.GetDataPresent(DataFormats.FileDrop))
            {
                string[] content = (string[])e.Data.GetData(DataFormats.FileDrop);
                for (int i = 0; i < content.Length; i++)
                { 
                    //这是全路径
                    label1.Text += content[i];
                }
            }
        }