//Preconditions:
// 00000 <= origin Zip <= 99999
// 00000 <= destination zip <= 99999
// length > 0
// width > 0
// height > 0
// weight > 0
//Postconditions: takes entered info and calculates the cost of shipping
private void addPackageButton_Click(object sender, EventArgs e)
{
int originZip; // declares a int variable to hold the origin zip code
int destinationZip; // declares a int variable to hold the destination zip code
double length; // declares a double variable to hold the length of the package
double width; // declares a double variable to hold the width of the package
double height; // declares a double variable to hold the height of the package
double weight; // declares a double variable to hold the weight of the package
const int MIN_ZIP = 00000; // declares a constant int variable to hold the minimum value the zip code could have
const int MAX_ZIP = 99999; // declares a constant int variable to hold the maximum value the zip code could have
const double INVALID_VALUE = 0; // declares a constant double variable to hold the the invalid value for the length,
//width, height, and weight
if (originZipTxtBox.Text.Length > 5 || originZipTxtBox.Text.Length < 5) // test to see if there is a 5 digit number in the origin zip text box
{
MessageBox.Show("Please enter a 5 digit zip code"); //error message if length does not = 5
originZipTxtBox.Focus(); // highlights the textbox where there error message is coming from
originZipTxtBox.SelectAll();
}
else// origin zip has 5 characters in its text box
{
if (destinationZipTxtBox.Text.Length > 5 || destinationZipTxtBox.Text.Length < 5)// test to see if there is a 5 digit number in the destination zip text box
{
MessageBox.Show("Please enter a 5 digit zip code"); //error message if length does not = 5
destinationZipTxtBox.Focus(); // highlights the textbox where there error message is coming from
destinationZipTxtBox.SelectAll();
}
else// destination zip has 5 characters in its text box
{
if (int.TryParse(originZipTxtBox.Text, out originZip) && originZip >= MIN_ZIP && originZip <= MAX_ZIP)// validing if the origin zip is an integer betweem 00000-99999
{
if (int.TryParse(destinationZipTxtBox.Text, out destinationZip) && destinationZip >= MIN_ZIP && destinationZip <= MAX_ZIP) // validing if the destination zip is an integer betweem 00000-99999
{
if (double.TryParse(lengthTxtBox.Text, out length) && length > INVALID_VALUE) // validating if the length is > 0
{
if (double.TryParse(widthTxtBox.Text, out width) && width > INVALID_VALUE) // validating if the width is > 0
{
if (double.TryParse(heightTxtBox.Text, out height) && height > INVALID_VALUE) // validating if the height is > 0
{
if (double.TryParse(weightTxtBox.Text, out weight) && weight > INVALID_VALUE) // validating if the weight is > 0
{
GroundPackage myGroundPackage = new GroundPackage(originZip, destinationZip, length, width, height, weight); // adds a new GroundPackage Object
myGroundPackage.OriginZip = originZip; // sets the new value of the origin Zip to the one entered by the user
myGroundPackage.DestinationZip = destinationZip; // sets the new value of the destination Zip to the one entered by the user
myGroundPackage.Length = length; // sets the new value of the length to the one entered by the user
myGroundPackage.Width = width; // sets the new value of the width to the one entered by the user
myGroundPackage.Height = height; // sets the new value of the height to the one entered by the user
myGroundPackage.Weight = weight; // sets the new value of the weight to the one entered by the user
myGroundPackage.CalcCost(); // takes entered info and calculates cost of shipping
packageList.Add(myGroundPackage); // adds the groundpackage object into the list
groundPackageListBox.Items.Add(myGroundPackage.CalcCost().ToString("C")); // displays the price of shipment into the list box
originZipTxtBox.Clear(); // clears the origin zip code text box
destinationZipTxtBox.Clear(); // clears the destination zip code text box
lengthTxtBox.Clear(); // clears the length text box
widthTxtBox.Clear(); // clears the width text box
heightTxtBox.Clear(); // clears the height text box
weightTxtBox.Clear(); // clears the weight text box
}
else// weight had invalid entry
{
MessageBox.Show("Please enter a valid weight (number > 0)");
weightTxtBox.Focus(); // highlights the textbox where there error message is coming from
weightTxtBox.SelectAll();
}
}
else// height had invalid entry
{
MessageBox.Show(" Please enter a valid height in inches (number > 0)");
heightTxtBox.Focus(); // highlights the textbox where there error message is coming from
heightTxtBox.SelectAll();
}
}
else// width had invalid entry
{
MessageBox.Show("Please enter a valid width in inches (number > 0)");
widthTxtBox.Focus(); // highlights the textbox where there error message is coming from
widthTxtBox.SelectAll();
}
}
else// length had invalid entry
{
MessageBox.Show("Please enter a valid length in inches ( number > 0)");
lengthTxtBox.Focus(); // highlights the textbox where there error message is coming from
lengthTxtBox.SelectAll();
}
}
else// origin zip code had invalid entry
{
MessageBox.Show("Please enter a valid, non negative 5 digit zip code");
originZipTxtBox.Focus(); // highlights the textbox where there error message is coming from
originZipTxtBox.SelectAll();
}
}
else// destination zip code had invalid entry
{
MessageBox.Show("Please enter a valid, non negative 5 digit zip code");
destinationZipTxtBox.Focus(); // highlights the textbox where there error message is coming from
destinationZipTxtBox.SelectAll();
}
}
}
}
public List <GroundPackage> myPackageList = new List <GroundPackage>(); //Creates a new list called myPackageList
//Add package button
// Precondition: User clicked on add package button
// Postcondition: If user's input are an the valid data types, the bool values are true
// they are used in a final if statement which clears the textboxes
// and
private void addBtn_Click(object sender, EventArgs e)
{
int originZipInput = 0; //Origin zip inputted by the user
int destinationZipInput = 0; //Destination zip inputted by the user
double lengthValueInput = 0; //Length inputted by the user
double widthValueInput = 0; //Width inputted by the user
double heightValueInput = 0; //Height inputted by the user
double weightValueInput = 0; //Weight inputted by the user
bool originBool = false; //origin zips that can be parsed and are >=00000 && <= 99999
bool destinationBool = false; //destination zips that can be parsed and are >=00000 && <=99999
bool lengthBool = false; //length values that can be parsed and are >0
bool widthBool = false; //width values that can be parsed and are >0
bool heightBool = false; //height values that can be parsed and are >0
bool weightBool = false; //weight values that can be parsed and are >0
GroundPackage myGroundPackage; //Creates an instance of GroundPackage called myGroundPackage
//This nested if statement tests to see if all of the 6 values can (1) be parsed and (2) if they
//fall within the necessary range(s). If they can be parsed, the corresponding bool variable
//of that value is true. Otherwise an error message appears and specifies what is wrong with the input.
if (int.TryParse(originZipTxtBox.Text, out originZipInput))
{
if (originZipInput >= 00000 && originZipInput <= 99999)
{
originBool = true;
}
else
{
MessageBox.Show("Enter a zip code between 00000 and 99999.");
}
}
else
{
MessageBox.Show("Enter a zip code between 00000 and 99999."); //try parse else
}
if (int.TryParse(destinationZipTxtBox.Text, out destinationZipInput))
{
if (destinationZipInput >= 00000 && destinationZipInput <= 99999)
{
destinationBool = true;
}
else
{
MessageBox.Show("Enter a zip code between 00000 and 99999.");
}
}
else
{
MessageBox.Show("Enter a zip code between 00000 and 99999."); //try parse else
}
if (double.TryParse(lengthTxtBox.Text, out lengthValueInput))
{
if (lengthValueInput > 0)
{
lengthBool = true;
}
else
{
MessageBox.Show("Enter a valid numeric length value.");
}
}
else
{
MessageBox.Show("Enter a valid numeric length value."); //try parse else
}
if (double.TryParse(widthTxtBox.Text, out widthValueInput))
{
if (widthValueInput > 0)
{
widthBool = true;
}
else
{
MessageBox.Show("Enter a valid numeric width value.");
}
}
else
{
MessageBox.Show("Enter a valid numeric width value."); //try parse else
}
if (double.TryParse(heightTxtBox.Text, out heightValueInput))
{
if (heightValueInput > 0)
{
heightBool = true;
}
else
{
MessageBox.Show("Enter a numeric height value.");
}
}
else
{
MessageBox.Show("Enter a valid numeric height value."); //try parse else
}
if (double.TryParse(weightTxtBox.Text, out weightValueInput))
{
if (weightValueInput > 0)
{
weightBool = true;
}
else
{
MessageBox.Show("Enter a numeric weight value.");
}
}
else
{
MessageBox.Show("Enter a numeric weight value."); //try parse else
}
//If all of the values can be parsed and meet the numeric requirements, then all of their respective
//textboxes will clear and a new ground package item will be created.
if (originBool && destinationBool && lengthBool && widthBool && heightBool && weightBool)
{
originZipTxtBox.Clear();
destinationZipTxtBox.Clear();
lengthTxtBox.Clear();
widthTxtBox.Clear();
heightTxtBox.Clear();
weightTxtBox.Clear();
//New ground package item created
myGroundPackage = new GroundPackage(originZipInput, destinationZipInput, lengthValueInput,
widthValueInput, heightValueInput, weightValueInput);
myPackageList.Add(myGroundPackage);
packageListBox.Items.Add(myGroundPackage.CalcCost().ToString("c")); //Displays the cost of the package
//in the listbox.
}
}
// Precondition: None
// Postcondition: Gets and parses inputted data and then assigns the data to the correct variable.
public void ValidatePackageData(GroundPackage package)
{
int originZip; // Holds origin Zip Code
int destinationZip; // Holds destination Zip Code
double length; // Holds package length
double height; // Holds package height
double width; // Holds package width
double weight; // Holds package weight
if (int.TryParse(originZipCodeTextBox.Text, out originZip) && originZip >= 11111 && originZip <= 99999)
{
package.OriginZip = originZip;
}
else
{
MessageBox.Show("Please enter a valid zip code.");
}
if (int.TryParse(DestinationZipCodeTextBox.Text, out destinationZip) && destinationZip >= 11111 && destinationZip <= 99999)
{
package.DestinationZip = destinationZip;
}
else
{
MessageBox.Show("Please enter a valid zip code.");
}
if (double.TryParse(lengthTextBox.Text, out length) && length >= 1)
{
package.Length = length;
}
else
{
MessageBox.Show("Please enter a number greater than 1.");
}
if (double.TryParse(heightTextBox.Text, out height) && height >= 1)
{
package.Height = height;
}
else
{
MessageBox.Show("Please enter a number greater than 1.");
}
if (double.TryParse(widthTextBox.Text, out width) && width >= 1)
{
package.Width = width;
}
else
{
MessageBox.Show("Please enter a number greater than 1.");
}
if (double.TryParse(weightTextBox.Text, out weight) && weight >= 1)
{
package.Weight = weight;
}
else
{
MessageBox.Show("Please enter a number greater than 1.");
}
}
