【小技巧】C#的saveFileDialog和openFileDialog的用法总结

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;

using System.IO;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            StreamWriter myStream;
            saveFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
            saveFileDialog1.RestoreDirectory = true;
            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
            {
                string str;
                str = saveFileDialog1.FileName;
                myStream = new StreamWriter(saveFileDialog1.FileName);
                myStream.Write(textBox1.Text); 
                myStream.Flush();
                myStream.Close();
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            string resultFile;
            OpenFileDialog openFileDialog1 = new OpenFileDialog();
            openFileDialog1.InitialDirectory = "D:\";
            openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
            openFileDialog1.RestoreDirectory = true;
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                resultFile = openFileDialog1.FileName;
                MessageBox.Show(resultFile);
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
        
        }
    }
}