C# WinForm拖入文件到窗体，得到文件路径

      private void textBox1_DragDrop(object sender, DragEventArgs e)

        {

            if (e.Data.GetDataPresent(DataFormats.FileDrop))

            {

                string[] rs = (string[])e.Data.GetData(DataFormats.FileDrop);

                MessageBox.Show(rs[0]);

            } 

        }

    

        

        private void Form1_DragEnter_1(object sender, DragEventArgs e)

        {

            //只允许文件拖放

            if (e.Data.GetDataPresent(DataFormats.FileDrop))

            {

                e.Effect = DragDropEffects.Copy;

            }

            else

            {

                e.Effect = DragDropEffects.None;

            }

        }

窗体上添加以上2个事件即可。DragEnter、DragDrop