winform选择文件夹读取文件名和文件路径

private void button1_Click(object sender, EventArgs e)
        {
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
            {
                string foldPath = folderBrowserDialog1.SelectedPath;
                MessageBox.Show("已选择文件夹:" + foldPath, "选择文件夹提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                //获取该目录下的文件         
                string[] files = Directory.GetFiles(@foldPath + "\", "*.bmp", System.IO.SearchOption.TopDirectoryOnly);
                List fileNameList = new List();

                foreach (var f in files)
                {
                    Console.WriteLine(f);
                    
                    string fileName = System.IO.Path.GetFileName(f); //获取文件名
                    fileName = fileName.Substring(0, fileName.IndexOf('.')); // 去除尾缀
                    fileNameList.Add(fileName);

                };
                List rowNameList = new List();
                List colNameList = new List();
                foreach (string  fileName in fileNameList)
                {
                    Console.WriteLine(fileName);    //遍历打印出动态数组list中的元素
                    string rowName = fileName.Substring(0, 2);  //文件路径
                    string colName = fileName.Substring(2);  //文件路径
                    rowNameList.Add(rowName);
                    colNameList.Add(colName);

                }

                foreach (string fileName in rowNameList)
                {
                    Console.WriteLine(fileName);    //遍历打印出动态数组list中的元素
 
                }
                foreach (string fileName in colNameList)
                {
                    Console.WriteLine(fileName);    //遍历打印出动态数组list中的元素

                }

                // 读取excel文件

            }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                OpenFileDialog OpenImage = new OpenFileDialog();
                // OpenImage.Filter = "(位图)*.bmp|";
                if (OpenImage.ShowDialog() == DialogResult.OK)
                {
                    string res = OpenImage.FileName;
                    MessageBox.Show(res);
                }

            }
            catch
            {
                MessageBox.Show("失败");
            }
        }