确定文件的位置--浏览文件夹对话框folderBrowserDialog

private void button1_Click(object sender, EventArgs e)

        {

            folderBrowserDialog1.ShowNewFolderButton = true;//是否显示新建的文件夹选项

            DialogResult dr = folderBrowserDialog1.ShowDialog();//显示选择文件夹对话框

            if (dr == DialogResult.OK)

            {

                MessageBox.Show(folderBrowserDialog1.SelectedPath, "选择的路径");//显示选择的路径

            }

        }