private void btnSave_Click(object sender, EventArgs e)
{
telephone = new Telephone();
telephone.Manufacturer = txtManufacturer.Text;
telephone.Model = txtModel.Text;
telephone.PhoneNumber = txtPhoneNum.Text;
numberToDial = txtNumberToDial.Text;
// have the user pick a file if they have not done so already
if (fileName == "")
{
if (saveFileDialogTelephoneEntryForm.ShowDialog() == DialogResult.OK)
{
fileName = saveFileDialogTelephoneEntryForm.FileName;
}
}
// open the file
fs = new FileStream(fileName, FileMode.Append, FileAccess.Write);
w = new BinaryWriter(fs);
// write the data to the file
telephone.saveDataTo(w);
// close the file in case we need to open for reading
w.Close();
fs.Close();
// display the data
txtOutput.Text = telephone.ToString() + Environment.NewLine +
"Phone # to dial: " + numberToDial;
// clear the fields
txtManufacturer.Clear();
txtModel.Clear();
txtPhoneNum.Clear();
txtNumberToDial.Clear();
}
private void btnShowPhones_Click(object sender, EventArgs e)
{
int i = 0;
TelephoneListForm showPhonesForm = new TelephoneListForm();
if (openFileDialogTelephoneEntryForm.ShowDialog() == DialogResult.OK)
{
fs = (FileStream)openFileDialogTelephoneEntryForm.OpenFile();
r = new BinaryReader(fs);
while (r.BaseStream.Position < r.BaseStream.Length)
{
telephone = new Telephone();
telephone.readDataFrom(r);
showPhonesForm.txtPhonesEntered.AppendText("=== Telephone " + (i + 1).ToString() + " ===" + Environment.NewLine);
showPhonesForm.txtPhonesEntered.AppendText(telephone.ToString() + Environment.NewLine);
showPhonesForm.txtPhonesEntered.AppendText(Environment.NewLine);
i++;
}
showPhonesForm.toolStripStatusLabelTelephoneListForm.Text = "A total of " + i.ToString() + " telephones.";
}
// show the form
showPhonesForm.Show();
}