Winform SaveFileDialog

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace SaveFileTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void BtnSaveFile_Click(object sender, EventArgs e)
        {
            SaveFile();
        }


        #region 保存对话框
        private void SaveFile()
        {
            //string localFilePath, fileNameExt, newFileName, FilePath;   
            SaveFileDialog saveFileDialog1 = new SaveFileDialog();

            //设置文件类型   
            saveFileDialog1.Filter = " txt files(*.txt)|*.txt|All files(*.*)|*.*";

            //设置默认文件类型显示顺序   
            saveFileDialog1.FilterIndex = 2;
            //保存对话框是否记忆上次打开的目录   
            saveFileDialog1.RestoreDirectory = true;

            //点了保存按钮进入   
            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
            {
                //获得文件路径   
                //localFilePath = saveFileDialog1.FileName.ToString();   

                //获取文件名，不带路径   
                //fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("\\") + 1);   

                //获取文件路径，不带文件名   
                //FilePath = localFilePath.Substring(0, localFilePath.LastIndexOf("\\"));   

                //给文件名前加上时间   
                //newFileName = DateTime.Now.ToString("yyyyMMdd") + fileNameExt;   

                //在文件名里加字符   
                //saveFileDialog1.FileName.Insert(1,"dameng");   

                System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();//输出文件   

                //fs输出带文字或图片的文件，就看需求了   
            }
        }
        #endregion
    }
}