Dialog Box (C#) From http://msdn.microsoft.com/en-us/library/vstudio/61097ykx(v=vs.100).aspx
private void button1_Click(object sender, System.EventArgs e)
{
if(openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
System.IO.StreamReader sr = new
System.IO.StreamReader(openFileDialog1.FileName);
MessageBox.Show(sr.ReadToEnd());
sr.Close();
}
}