private void mnuFileOpen_Click(object sender, EventArgs e)
        {
                 string fileName = "";
                
                OpenFileDialog1.Filter ="Text files(*.txt)|*.txt|All files(*.*)|*.*";
                OpenFileDialog1.FilterIndex = 1;
                OpenFileDialog1.InitialDirectory = "c:\\My documents";
                
               
                
                if ( OpenFileDialog1.ShowDialog() == DialogResult.OK)
                { 
                        fileName = OpenFileDialog1.FileName;
                        using (StreamReader myReader = new StreamReader(fileName))
                            try
                             {
                                    textPad.Text = myReader.ReadToEnd();
                             }
                            catch (Exception ex)
                             {
                                    MessageBox.Show("I cannot open that file. " + ex.Message, "System Message",
                                        MessageBoxButtons.OK,MessageBoxIcon.Error);
                             }
                            finally
                             {
                                    myReader.Close();
                             }
                }   

        }