public AddResidentForm()
{
InitializeComponent();
warningLabel.Hide();
warningFloor.Hide();
IdCheckLabel.Hide();
}
private void button1_Click(object sender, EventArgs e)
{
warningFloor.Hide();
IdCheckLabel.Hide();
//read file
FileStream file = new FileStream("Students.csv", FileMode.Open, FileAccess.Read);
StreamReader reader = new StreamReader(file);
string[] IDList = { };
string line = reader.ReadLine();
while (line != null) //Create a list of all IDs for checking later
{
char delimeter = ',';
string[] row = line.Split(delimeter);
string[] temp = { row[4] };
IDList = IDList.Concat(temp).ToArray();
line = reader.ReadLine();
}
reader.Close();
file.Close();
//writng to the file
FileStream add = new FileStream("Students.csv", FileMode.Append, FileAccess.Write);
StreamWriter writer = new StreamWriter(add);
string firstname = firstnameBox.Text;
string lastname = lastnameBox.Text;
string studentType = studentTypeBox.Text;
string floorNumber = floorBox.Text;
string studentID = idBox.Text;
string hoursWorked = hoursBox.Text;
string[] residentInfo = { };
//Start of defensive programming section
bool check = false;
for (var i = 0; i < IDList.Length; i++)
{
if (studentID == IDList[i])
{
check = true;
}
}
int floor = 0;
if (floorNumber != "1" && floorNumber != "2" && floorNumber != "3" && floorNumber != "4" && floorNumber != "5" && floorNumber != "6" && floorNumber != "7" && floorNumber != "8" && floorNumber != "9")
{
warningFloor.Show();
warningFloor.Text = "*Invalid floor number.";
}
else
{
warningFloor.Text = "*";
floor = Int32.Parse(floorNumber);
}
if (firstname == "" || lastname == "")
{
warningLabel.Show();
warningLabel.Text = "*Please enter a first and last name.";
}
else if (studentType != "Athlete" && studentType != "Scholarship" && studentType != "Worker")
{
warningLabel.Show();
warningLabel.Text = "*Invalid student type entered";
}
else if (studentType == "Worker" && floor > 3)
{
warningLabel.Show();
warningLabel.Text = "*Student Workers can only be placed on floors 1-3.";
}
else if (studentType == "Athlete" && floor >= 7 || studentType == "Athlete" && floor <= 3)
{
warningLabel.Show();
warningLabel.Text = "*Student Athletes can only be placed on floors 4-6.";
}
else if (studentType == "Scholarship" && floor < 7)
{
warningLabel.Show();
warningLabel.Text = "*Scholarship Students can only be placed on floors 7-8.";
}
else if (studentType == "Worker" && hoursWorked == "0")
{
warningLabel.Show();
warningLabel.Text = "*Please enter the weekly hours for the student worker.";
}
else if (studentType == "Athlete" && hoursWorked != "0" || studentType == "Scholarship" && hoursWorked != "0")
{
warningLabel.Show();
warningLabel.Text = "*Only student workers may have weekly hours.";
hoursBox.Text = "0";
}
else if (studentID.Length != 4)
{
warningLabel.Show();
warningLabel.Text = "*Student ID must be 4 numbers long.";
}
else if (check == true)
{
IdCheckLabel.Show();
IdCheckLabel.Text = "*Entered ID was already taken.";
idBox.Text = "";
}
//end of defensive programming
else //If no incorrect user input, information is written to the csv file
{
IdCheckLabel.Text = "*";
warningLabel.Text = "*New Resident was successfully added!";
writer.WriteLine("{0},{1},{2},{3},{4},{5}", firstname, lastname, studentType, floorNumber, studentID, hoursWorked);
firstnameBox.Text = "";
lastnameBox.Text = "";
idBox.Text = "";
}
//close files
writer.Close();
add.Close();
}