OpenFileDialog

打开一个文件

        private void button1_Click(object sender, EventArgs e)

        {

            openFileDialog1.InitialDirectory = "c:\\";

            openFileDialog1.Filter = "文本文件 (*.txt)|*.txt|All files (*.*)|*.*";

            if (openFileDialog1.ShowDialog() == DialogResult.OK)

            {

                label1.Text = openFileDialog1.FileName;

                System.IO.StreamReader str = new System.IO.StreamReader(openFileDialog1.FileName);

                textBox1.Text = str.ReadToEnd();

                str.Close();

            }

}

打开多个文件

        private void button1_Click(object sender, EventArgs e)

        {

            OpenFileDialog openFileDialog1 = new OpenFileDialog();

            openFileDialog1.Multiselect = true;

            if (openFileDialog1.ShowDialog()==DialogResult.OK)

            {

                foreach (var FileName in openFileDialog1.FileNames)

                {

                    listView1.Items.Add(FileName);

                }

            }

}

来自为知笔记(Wiz)