// Precondition: Insert, Letter menu item activated
// Postcondition: The Letter dialog box is displayed. If data entered
// are OK, a Letter is created and added to the list
// of parcels
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm; // The letter dialog box form
DialogResult result; // The result of showing form as dialog
if (upv.AddressCount < LetterForm.MIN_ADDRESSES) // Make sure we have enough addresses
{
MessageBox.Show("Need " + LetterForm.MIN_ADDRESSES + " addresses to create letter!",
"Addresses Error");
return;
}
letterForm = new LetterForm(upv.AddressList); // Send list of addresses
result = letterForm.ShowDialog();
if (result == DialogResult.OK) // Only add if OK
{
try
{
// For this to work, LetterForm's combo boxes need to be in same
// order as upv's AddressList
upv.AddLetter(upv.AddressAt(letterForm.OriginAddressIndex),
upv.AddressAt(letterForm.DestinationAddressIndex),
decimal.Parse(letterForm.FixedCostText)); // Letter to be inserted
}
catch (FormatException) // This should never happen if form validation works!
{
MessageBox.Show("Problem with Letter Validation!", "Validation Error");
}
}
letterForm.Dispose(); // Best practice for dialog boxes
}
// Precondition: Insert, Letter menu item activated
// Postcondition: The Letter dialog box is displayed. If data entered
// are OK, a Letter is created and added to the list
// of parcels
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm; // The letter dialog box form
DialogResult result; // The result of showing form as dialog
decimal fixedCost; // The letter's cost
if (upv.AddressCount < LetterForm.MIN_ADDRESSES) // Make sure we have enough addresses
{
MessageBox.Show("Need " + LetterForm.MIN_ADDRESSES + " addresses to create letter!",
"Addresses Error");
return; // Exit now since can't create valid letter
}
letterForm = new LetterForm(upv.AddressList); // Send list of addresses
result = letterForm.ShowDialog();
if (result == DialogResult.OK) // Only add if OK
{
if (decimal.TryParse(letterForm.FixedCostText, out fixedCost))
{
// For this to work, LetterForm's combo boxes need to be in same
// order as upv's AddressList
upv.AddLetter(upv.AddressAt(letterForm.OriginAddressIndex),
upv.AddressAt(letterForm.DestinationAddressIndex),
fixedCost); // Letter to be inserted
}
else // This should never happen if form validation works!
{
MessageBox.Show("Problem with Letter Validation!", "Validation Error");
}
}
letterForm.Dispose(); // Best practice for dialog boxes
// Alternatively, use with using clause as in Ch. 17
}
//Preconditions: Letter menu button must be clicked
//Postconditions: LetterForm appears for data input
private void LetterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm = new LetterForm();
DialogResult letterResult;
letterResult = letterForm.ShowDialog();
}
// Precondition: None
// Postcondition: Adds a handler to the Insert -> Letter
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
//Create the letter form, giving it the UPV
LetterForm letterForm = new LetterForm(UserParcelView);
//Show the dialog wait for it to close
letterForm.ShowDialog();
//Lets rebuild the list, something might have been added
outputAddressesAndLetters(true);
}
// Precondition: Button must be clicked
// postcondition: the letter form will be opened
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm = new LetterForm(upv);
DialogResult letterResult;
letterResult = letterForm.ShowDialog();
if (letterResult == DialogResult.OK)
{
upv.AddLetter(letterForm.OriginAddress, letterForm.DestinationAddress, letterForm.FixedCost);
}
}
//Pre-Condition:The "Letter" menu item is clicked
//Post-Condition: The LetterForm is displayed as a dialoge and if the
// result is OK a letter is added to parcels
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm = new LetterForm(userParcelView.addresses); //instance of the letter form is created
DialogResult result; //varibale to hold the result of the dialog
result = letterForm.ShowDialog();
if (result == DialogResult.OK)
{
userParcelView.AddLetter(userParcelView.addresses[letterForm.OriginCombo], userParcelView.addresses[letterForm.DestCombo], int.Parse(letterForm.CostBox));
}
}
//Precondition: Origin address, destination address, and fixed cost must have values
//Postconditon: Shows form and creates a letter
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm lfrm = new LetterForm(upv.AddressList); //New LetterForm object
DialogResult result = lfrm.ShowDialog();
if (result == DialogResult.OK)
{
upv.AddLetter(upv.AddressAt(lfrm.OriginValue), upv.AddressAt(lfrm.DestValue),
decimal.Parse(lfrm.FixedCost));
}
lfrm.Dispose();
}
/*
* Preconditions: The insert letter button is clicked.
* Postcondition: The letter form appears and address is added to the list if necessary.
*/
private void insertParcelToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm = new LetterForm(upv.AddressList);
DialogResult result; // Result from dialog - OK/Cancel?
result = letterForm.ShowDialog();
if (result == DialogResult.OK)
{
upv.AddLetter(upv.AddressAt(letterForm.From), upv.AddressAt(letterForm.To), letterForm.Cost);
}
}
//Precondition: Insert, Letter menu item activated
//Postcondition: Displays the LetterForm and passes the desired origin/destination Addresses into the affiliated UPV parcels list
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm = new LetterForm(testa.AddressList);
DialogResult result = letterForm.ShowDialog(); //Pulls the dialog result
decimal fixedCost = letterForm.NewCost; //Variable for the fixed cost
//If statement that takes the inputs made on the LetterForm
// and passes it to the UPV AddLetter method
if (result == DialogResult.OK)
{
testa.AddLetter(testa.AddressAt(letterForm.FromAddress), testa.AddressAt(letterForm.ToAddress), fixedCost);
}
}
//Precondition: Insert > Letter has been activated.
//Postcondition: The letter object has been created.
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm = new LetterForm(upv.AddressList);
DialogResult result = letterForm.ShowDialog();
Address oAddress;
Address dAddress;
decimal fixedCost;
if (result == DialogResult.OK)
{
oAddress = letterForm.OriginAddressIndex;
dAddress = letterForm.DestinationAddressIndex;
decimal.TryParse(letterForm.FixedCost, out fixedCost);
upv.AddLetter(oAddress, dAddress, fixedCost);
}
}
//precondition: click Insert/letter tab
//postcondition: opens new form to take user input for the letter and return it, then stores it.
private void letterSub_Click(object sender, EventArgs e)
{
DialogResult results; // DialogResult variable declared
LetterForm newLetter = new LetterForm(formObject.AddressList); // instance of letterForm instantiated
results = newLetter.ShowDialog();
//if statement that stores letter info if OK button was clicked.
if (results == DialogResult.OK)
{
int originAddIndex = newLetter.OriginAddIndex; //int variable to store the index of address chosen
int destAddIndex = newLetter.DestAddIndex; //int variable to store the index of address chosen
decimal cost = newLetter.Cost; //decimal variable to store the cost input
formObject.AddLetter(formObject.AddressAt(originAddIndex), formObject.AddressAt(destAddIndex), cost);
}
}
//Precondition: click, upv.address must be instantiated with more than 2 addresses
//Postcondition: Show Letter Form, add letter to upv parcel list
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm LF = new LetterForm(upv.addresses); //create LetterForm object, pass upv.AddressList into the constructor
DialogResult result; //holds dialog result OK/Cancel
result = LF.ShowDialog(); //shows form as a modal dialog box
if (result == DialogResult.OK) //result == OK? add the selected indices and parsed fixed cost to the parcel list
{
//Precondition: origin address and destination address Indices cannot be Equal, fixed cost must be a decimal value
//Postcondition: Add Letter to UserParcelView parcel list
upv.AddLetter(LF.AddressList[LF.OriginIndex], LF.AddressList[LF.DestinationIndex], decimal.Parse(LF.FixedCost));
}
else
if (result == DialogResult.Cancel) //Dispose of resources if result == cancel
{
LF.Dispose();
}
}
//Precondition: Letter menu item is clicked
//Postcondition: Input from letter form is stored and sent to UPV.
private void letterToolStripMenuItem_Click(object sender, EventArgs e)
{
LetterForm LetterForm = new LetterForm(upv.AddressList);
DialogResult result;
int originIndex;
int destinationIndex;
decimal fixedCost;
result = LetterForm.ShowDialog();
if (result == DialogResult.OK)
{
originIndex = LetterForm.OriginIndex;
destinationIndex = LetterForm.DestIndex;
fixedCost = decimal.Parse(LetterForm.LetterFixedCost);
upv.AddLetter(upv.AddressAt(originIndex), upv.AddressAt(destinationIndex), fixedCost);
}
}
// Click event for the Add Letter menu option
private void letterMenuItem_Click(object sender, EventArgs e)
{
LetterForm letterForm = new LetterForm(upv.AddressList); // Creates a new instance of the LetterForm
DialogResult result; // Holds result of dialog box
result = letterForm.ShowDialog(); // Sets result = what was input
// Holds the various information entered on AddressForm
string originAddress;
string destinationAddress;
decimal fixedCost;
if (result == DialogResult.OK) // If the user clicks ok on address form, info is entered and stored in upv
{
// originAddress = letterForm.OriginAddress;
//destinationAddress = letterForm.DestinationAddress;
fixedCost = letterForm.FixedCost;
//upv.AddLetter(originAddress, destinationAddress, fixedCost);
}
}
//Postcondition: file must be selected
//Postcondition: Deserialize binary object and downcast it as a UPV object, pass it through to the LetterForm
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
DialogResult result; //store dialog result
string fileName; //store the file name
using (var fileChooser = new OpenFileDialog())
{
result = fileChooser.ShowDialog(); //Show OpenFileDialog Dialog box
fileName = fileChooser.FileName; //set the file name
}
if (result == DialogResult.OK) //if OK clicked
{
if (string.IsNullOrEmpty(fileName)) //is fileName empty?
{
MessageBox.Show("Invalid File Name", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error); // show error if user specified invalid file
}
else
{
FileStream input = new FileStream(
fileName, FileMode.Open, FileAccess.Read); //create FileStream with path name, Open Mode, and Read Access
try
{
fileReader = new StreamReader(input); // set file from where data is read
upv = (UserParcelView)formatter.Deserialize(input); //Deserialize the input and set it to the upv
LetterForm LF = new LetterForm(upv.AddressList); //create LetterForm object
}
catch (IOException)
{
MessageBox.Show("Error reading from file",
"File Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
finally
{
input.Close(); //release the FileStream resources
}
}
}
}
