Winform---文件夹操作

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一、文件夹的操作
private void button1_Click(object sender, EventArgs e)
{
//文件夹操作
////新建文件夹
//Directory.CreateDirectory(@"F:\zhoubinn");
//DirectoryInfo dir = new DirectoryInfo(@"F:\zhoubin1");
//dir.Create();
}

private void button2_Click(object sender, EventArgs e)
{//删除文件夹
//Directory.Delete(@"F:\zhoubinn");
//DirectoryInfo aa = new DirectoryInfo(@"F:\zhoubin1");
//aa.Create();
}

private void button4_Click(object sender, EventArgs e)
{// 判断文件夹是否存在
//bool bo = Directory.Exists(@"F:\zhoubinn");
//if (bo == true)
//{
// MessageBox.Show("文件夹存在");
//}
//else
//{
// MessageBox.Show("文件不不存在");
//}
}

private void button3_Click(object sender, EventArgs e)
{ // 获取某个文件夹内子文件名
//string[] aa = Directory.GetFiles(@"F:\zhoubin");
////listBox1.Items.Clear();
//foreach (string a in aa)
//{///显示在listbox里面
// listBox1.Items.Add(a);
//}

//DirectoryInfo name = new DirectoryInfo(@"F:\zhoubin");
//FileInfo[] af = name.GetFiles();
//// listBox1.Items.Clear();
//foreach (FileInfo a in af)
//{
// listBox1.Items.Add(a.FullName);

//}
}

private void button5_Click(object sender, EventArgs e)
{ // 获取某个文件中子文件中的名字
//string[] name = Directory.GetDirectories(@"F:\zhoubin");
//listBox1.Items.Clear();
//foreach (string a in name)
//{
// listBox1.Items.Add(a);
//}

//DirectoryInfo ac = new DirectoryInfo(@"F:zhoubin");
//DirectoryInfo[] s = ac.GetDirectories();
//foreach (DirectoryInfo a in s)
//{
// listBox1.Items.Add(a);
//}

}

private void button8_Click(object sender, EventArgs e)
{
//获取文件夹的创建时间，最后一次的访问时间 最后一次写入时间
//string r = @"F:\zhoubin";
//DateTime createtime = Directory.GetCreationTime(r);
//DateTime fangwen = Directory.GetLastAccessTime(r);
//DateTime xieru = Directory.GetLastWriteTime(r);
//listBox1.Items.Add(createtime);
//listBox1.Items.Add(fangwen);
//listBox1.Items.Add(xieru);

DirectoryInfo afg = new DirectoryInfo(@"F:\zhoubin1");
DateTime a = afg.CreationTime;
DateTime b = afg.LastAccessTime;
DateTime c = afg.LastWriteTime;
listBox1.Items.Add(afg.LastWriteTime);
listBox1.Items.Add(b);
listBox1.Items.Add(c);

}

private void button9_Click(object sender, EventArgs e)
{
listBox1.Items.Clear();
}

private void button6_Click(object sender, EventArgs e)
{
string path = @"F:\zhoubin1";
Directory.SetLastWriteTime(path,new DateTime(2030,3,4));
Directory.SetLastAccessTime(path,new DateTime(2040,5,6));
Directory.SetCreationTime(path,new DateTime(1984,4,5));
}

private void button7_Click(object sender, EventArgs e)
{
string a = @"F:\zhoubin\123";
string b = @"F:\zhoubin1\";
Directory.Move(a,b);
}
}
二、 读写文件的操作

private void button1_Click(object sender, EventArgs e)
{
// 读取文件内容
String path = @"F:\wenjianduqu\读取2.doc";
//实例化流文件
FileStream stream = new FileStream(path, FileMode.Open);

//将文件转换为二进制字符；
byte[] nr = new byte[stream.Length];
//stream.Write();
//读取流文件
stream.Read(nr, 0, nr.Length);
//关闭流文件
stream.Close();
//将读取的流文件从二进制转化为字符串
// String s = System.Text.Encoding.Default.GetString(nr);
string s = System.Text.Encoding.UTF32.GetString(nr);
textBox1.Text = s;
}

private void button2_Click(object sender, EventArgs e)
{
// 读取文件内内容方法二
string path = @"F:\duquwenjian\读取2.txt";
FileStream stream = new FileStream(path, FileMode.Open);

StreamReader reader = new StreamReader(stream, Encoding.Default);
string ss = reader.ReadToEnd();
reader.Close();
stream.Close();

textBox1.Text = ss;
}

private void button3_Click(object sender, EventArgs e)
{
//读取文件内容方法三
string path = @"D:\duqu.txt";
StreamReader reader = new StreamReader(path, Encoding.Default);
string a = reader.ReadToEnd();
textBox1.Text = a;
}

private void button4_Click(object sender, EventArgs e)
{
//读取文件内容方法4
DialogResult dia = open.ShowDialog();
if (dia == System.Windows.Forms.DialogResult.OK)
{
StreamReader reader = new StreamReader(open.FileName, Encoding.Default);
string ssse = reader.ReadToEnd();
reader.Close();

textBox1.Text = ssse;
}
}

private void button5_Click(object sender, EventArgs e)
{
// 写入文件内容
string path = @"F:\wenjianduqu\abc.txt";
StreamWriter writ = new StreamWriter(path, false, Encoding.Default);
//fause 将源文件全部替换；ture 在源文件的基础上追加

writ.WriteLine(textBox1.Text);

writ.Close();

}

private void button6_Click(object sender, EventArgs e)
{
//写入内容2
DialogResult dia = save.ShowDialog();
if (dia == System.Windows.Forms.DialogResult.OK)
{
StreamWriter writ = new StreamWriter(save.FileName, true, Encoding.Default);

writ.WriteLine(textBox1.Text);

writ.Close();
}

}

private void button7_Click(object sender, EventArgs e)
{

//写入内容3
DialogResult dia = save.ShowDialog();
if (dia == System.Windows.Forms.DialogResult.OK)
{
FileStream stream = new FileStream(save.FileName, FileMode.OpenOrCreate);
StreamWriter weri = new StreamWriter(stream);
weri.WriteLine(textBox1.Text);
stream.Close();
weri.Close();
}
}

private void button8_Click(object sender, EventArgs e)
{
//写入文件方法4
if (save.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
byte[] nr = System.Text.Encoding.Default.GetBytes(textBox1.Text);

FileStream strea = new FileStream(save.FileName, FileMode.OpenOrCreate);
strea.Write(nr, 0, nr.Length);
strea.Close();
}

}

Winform---文件夹操作

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原文地址：http://www.cnblogs.com/woniu-net/p/4679698.html