winform 实现选择文件和选择文件夹对话框

//选择文件，点击【浏览】，选择文件
private void button1_Click(object sender, EventArgs e)
{
    OpenFileDialog openFileDialog1 = new OpenFileDialog();     //显示选择文件对话框
    openFileDialog1.InitialDirectory = "c:\\";
    openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
    openFileDialog1.FilterIndex = 2;
    openFileDialog1.RestoreDirectory = true;

    if (openFileDialog1.ShowDialog() == DialogResult.OK)
    {
        this.textBox1.Text = openFileDialog1.FileName;          //显示文件路径
    }
}

//选择文件夹：点击【浏览】，选择文件夹
private void button4_Click(object sender, EventArgs e)
{
    if (this.folderBrowserDialog1.ShowDialog() == DialogResult.OK)
    {
        if (this.folderBrowserDialog1.SelectedPath.Trim() != "")
            this.textBox4.Text = this.folderBrowserDialog1.SelectedPath.Trim();
    }
}

　　选择文件夹对话框，如果想默认一个文件夹，在click事件一开始添加以下代码：

 folderBrowserDialog1.SelectedPath =“d:\”;

　　呵呵，是不是很简单呢。