求助如何在其他控件引用另外控件的局部变量?

Question

1. string folderName;定义为类的成员
if (result == DialogResult.OK)
                {
                    folderName = folderBrowserDialog1.SelectedPath;
                    if (folderName != "")
                    {
                        outputdirbox.Text = folderName;
                    }
                }
2.通过folderBrowserDialog1访问
  
private void openoptputdir_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start("explorer.exe", folderBrowserDialog1.SelectedPath);
        }  

Answer 1

        private void outputselect_Click(object sender, EventArgs e)
        {
            {
                FolderBrowserDialog folderBrowserDialog1 = new FolderBrowserDialog();
                folderBrowserDialog1.Description = "请选择输出文件夹";
                folderBrowserDialog1.ShowNewFolderButton = true;
                folderBrowserDialog1.RootFolder = Environment.SpecialFolder.Desktop;
                DialogResult result = folderBrowserDialog1.ShowDialog();
                if (result == DialogResult.OK)
                {
                    string folderName = folderBrowserDialog1.SelectedPath;
                    if (folderName != "")
                    {
                        outputdirbox.Text = folderName;
                    }
                }
            }
        }就这样一个按钮,这个foldername的变量想引用下就这么费劲么??
我建立了这个变量,把foldername变量中的值写到outputdir变量中要怎么写啊,msdn的资料看的我头大        public static int outputdir = 0;