//Pre: user clicks on letter tab
//Post: LetterForm should appear and allow data to be selected/entered
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
Letter_Form letterForm = new Letter_Form(upv.AddressList);
DialogResult result;
result = letterForm.ShowDialog();
}
//Precondition: The letter item on the insert menu has been clicked.
//Postcondition: A dialog box has been displayed requesting letter info.
// If sumitted, a letter object is stored in the Parcel list.
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
Letter_Form letterForm = new Letter_Form(upv); //Letter dialog box form
DialogResult result; //Result from dialog box
result = letterForm.ShowDialog(); //Show dialog box form
if (result == DialogResult.OK) //Update if user clicks OK form dialog box
{
upv.AddLetter(letterForm.OrigAddress, letterForm.DestAddress, letterForm.FixedCost);
}
}