public Register_Form()
{
InitializeComponent();
db = new DBFunction();
student = new Student();
eventList = new List<Event>();
su = new StringUtil();
btn_Add.Hide();
db.LoadEventList();
eventList = db.GetEventList;
id = new Int32[eventList.Count];
name = new String[eventList.Count];
FormPrepare();
}
public void UpdateStudent(int studentID, string lName, string fName, string year, string course, int gender, int member,
int oldMember, DateTime birthday, string contactNo, string email, string houseHold, string committee, int paid)
{
student = SearchStudent(studentID);
studentList.Remove(student);
MySqlConnection myConn = OpenDBConnection();
string cmd = "UPDATE yfc.new_student_t SET last_name = @LastName, first_name = @Firstname, year = @Year, course = @Course, gender = @Gender, member = @Member, old_member = @OldMember, birthday = @Birthday, contact_no = @ContactNo, email = @Email, household = @HouseHold, committee = @Committee, paid = @Paid WHERE student_id = @StudentID";
//Passes the command into the database connection
MySqlCommand UpdateCommand = new MySqlCommand(cmd, myConn);
UpdateCommand.Parameters.AddWithValue("@StudentID", studentID);
UpdateCommand.Parameters.AddWithValue("@LastName", lName);
UpdateCommand.Parameters.AddWithValue("@FirstName", fName);
UpdateCommand.Parameters.AddWithValue("@Year", year);
UpdateCommand.Parameters.AddWithValue("@Course", course);
UpdateCommand.Parameters.AddWithValue("@Gender", gender);
UpdateCommand.Parameters.AddWithValue("@Member", member);
UpdateCommand.Parameters.AddWithValue("@OldMember", oldMember);
UpdateCommand.Parameters.AddWithValue("@Birthday", birthday);
UpdateCommand.Parameters.AddWithValue("@ContactNo", contactNo);
UpdateCommand.Parameters.AddWithValue("@Email", email);
UpdateCommand.Parameters.AddWithValue("@HouseHold", houseHold);
UpdateCommand.Parameters.AddWithValue("@Committee", committee);
UpdateCommand.Parameters.AddWithValue("@Paid", paid);
try
{
myConn.Open();
UpdateCommand.ExecuteNonQuery();
studentList.Add(new Student(studentID, lName, fName, year, course, gender, member, oldMember, birthday,
contactNo, email, houseHold, committee, paid));
GetMemberList = studentList;
}
catch (Exception)
{
}
}
//Selects all the students in the DB and their info
public void LoadStudentList()
{
student = new Student();
studentList = new List<Student>();
MySqlConnection myConn = OpenDBConnection();
string cmd = "SELECT * FROM yfc.new_student_t";
MySqlCommand SelectCommand = new MySqlCommand(cmd, myConn);
MySqlDataReader myReader;
try
{
myConn.Open();
myReader = SelectCommand.ExecuteReader();
while (myReader.Read())
{
try { student.StudentID = myReader.GetInt32(0); }
catch (InvalidCastException) { }
try { student.LastName = myReader.IsDBNull(1) ? null : myReader.GetString(1); }
catch (InvalidCastException) { }
try { student.FirstName = myReader.IsDBNull(2) ? null : myReader.GetString(2); }
catch (InvalidCastException) { }
try { student.Year = myReader.IsDBNull(3) ? null : myReader.GetString(3); }
catch (InvalidCastException) { }
try { student.Course = myReader.IsDBNull(4) ? null : myReader.GetString(4); }
catch (InvalidCastException) { }
try { student.Gender = myReader.IsDBNull(5) ? 0 : myReader.GetInt32(5); }
catch (InvalidCastException) { }
try { student.Member = myReader.IsDBNull(6) ? 0 : myReader.GetInt32(6); }
catch (InvalidCastException) { }
try { student.OldMember = myReader.IsDBNull(7) ? 0 : myReader.GetInt32(7); }
catch (InvalidCastException) { }
try { student.Birthday = myReader.IsDBNull(8) ? DateTime.Now : myReader.GetDateTime(8); }
catch (InvalidCastException) { }
try { student.ContactNo = myReader.IsDBNull(9) ? null : myReader.GetString(9); }
catch (InvalidCastException) { }
try { student.Email = myReader.IsDBNull(10) ? null : myReader.GetString(10); }
catch (InvalidCastException) { }
try { student.HouseHold = myReader.IsDBNull(11) ? null : myReader.GetString(11); }
catch (InvalidCastException) { }
try { student.Committee = myReader.IsDBNull(12) ? null : myReader.GetString(12); }
catch (InvalidCastException) { }
try { student.Paid = myReader.IsDBNull(13) ? 0 : myReader.GetInt32(13); }
catch (InvalidCastException) { }
studentList.Add(new Student(student.StudentID, student.LastName, student.FirstName, student.Year, student.Course, student.Gender, student.Member, student.OldMember, student.Birthday, student.ContactNo, student.Email, student.HouseHold, student.Committee, student.Paid));
}
}
catch (Exception)
{
}
myConn.Close();
GetMemberList = studentList;
}
public Student LoadOldStudentData(int studentID)
{
student = new Student();
MySqlConnection myConn = OpenDBConnection();
string cmd = "SELECT * FROM yfc.old_student_t WHERE student_id = @StudentID";
MySqlCommand SelectCommand = new MySqlCommand(cmd, myConn);
SelectCommand.Parameters.AddWithValue("@StudentID", studentID);
MySqlDataReader myReader;
try
{
myConn.Open();
myReader = SelectCommand.ExecuteReader();
while (myReader.Read())
{
try { student.StudentID = myReader.GetInt32(0); }
catch (InvalidCastException) { }
try { student.FullName = myReader.IsDBNull(1) ? null : myReader.GetString(1); }
catch (InvalidCastException) { }
try { student.Year = myReader.IsDBNull(2) ? null : myReader.GetString(2); }
catch (InvalidCastException) { }
try { student.Course = myReader.IsDBNull(3) ? null : myReader.GetString(3); }
catch (InvalidCastException) { }
int year = int.Parse(student.Year) + 1;
student.Year = year.ToString();
}
}
catch (Exception)
{
}
myConn.Close();
return student;
}
//Loads only ID and Name of student
public Student LoadNameYearSection(int studentID)
{
student = new Student();
MySqlConnection myConn = OpenDBConnection();
string cmd = "SELECT last_name, first_name, year, course FROM yfc.new_student_t WHERE student_id = @StudentID";
MySqlCommand SelectCommand = new MySqlCommand(cmd, myConn);
SelectCommand.Parameters.AddWithValue("@StudentID", studentID);
MySqlDataReader myReader;
try
{
myConn.Open();
myReader = SelectCommand.ExecuteReader();
while (myReader.Read())
{
try { student.LastName = myReader.IsDBNull(0) ? null : myReader.GetString(0); }
catch (InvalidCastException) { }
try { student.FirstName = myReader.IsDBNull(1) ? null : myReader.GetString(1); }
catch (InvalidCastException) { }
try { student.Year = myReader.IsDBNull(2) ? null : myReader.GetString(2); }
catch (InvalidCastException) { }
try { student.Course = myReader.IsDBNull(3) ? null : myReader.GetString(3); }
catch (InvalidCastException) { }
}
}
catch (Exception)
{
}
myConn.Close();
return student;
}
//For Form_ViewStudent, so that they can view all of their details
public Student LoadFullStudentData(int studentID)
{
student = new Student();
MySqlConnection myConn = OpenDBConnection();
string cmd = "SELECT * FROM yfc.new_student_t WHERE student_id = @StudentID";
MySqlCommand SelectCommand = new MySqlCommand(cmd, myConn);
SelectCommand.Parameters.AddWithValue("@StudentID", studentID);
MySqlDataReader myReader;
try
{
myConn.Open();
myReader = SelectCommand.ExecuteReader();
while (myReader.Read())
{
try { student.StudentID = myReader.GetInt32(0); }
catch (InvalidCastException) { }
try { student.LastName = myReader.IsDBNull(1) ? null : myReader.GetString(1); }
catch (InvalidCastException) { }
try { student.FirstName = myReader.IsDBNull(2) ? null : myReader.GetString(2); }
catch (InvalidCastException) { }
try { student.Year = myReader.IsDBNull(3) ? null : myReader.GetString(3); }
catch (InvalidCastException) { }
try { student.Course = myReader.IsDBNull(4) ? null : myReader.GetString(4); }
catch (InvalidCastException) { }
try { student.Gender = myReader.IsDBNull(5) ? 0 : myReader.GetInt16(5); }
catch (InvalidCastException) { }
try { student.Member = myReader.IsDBNull(6) ? 0 : myReader.GetInt16(6); }
catch (InvalidCastException) { }
try { student.OldMember = myReader.IsDBNull(7) ? 0 : myReader.GetInt16(7); }
catch (InvalidCastException) { }
try { student.Birthday = myReader.IsDBNull(8) ? DateTime.Now : myReader.GetDateTime(8); }
catch (InvalidCastException) { }
try { student.ContactNo = myReader.IsDBNull(9) ? null : myReader.GetString(9); }
catch (InvalidCastException) { }
try { student.Email = myReader.IsDBNull(10) ? null : myReader.GetString(10); }
catch (InvalidCastException) { }
try { student.HouseHold = myReader.IsDBNull(11) ? null : myReader.GetString(11); }
catch (InvalidCastException) { }
try { student.Committee = myReader.IsDBNull(12) ? null : myReader.GetString(12); }
catch (InvalidCastException) { }
try { student.Paid = myReader.IsDBNull(13) ? 0 : myReader.GetInt16(13); }
catch (InvalidCastException) { }
}
}
catch (Exception)
{
}
myConn.Close();
return student;
}
public void DeleteStudent(string idNum)
{
MySqlConnection myConn = OpenDBConnection();
string cmd = "DELETE FROM yfc.new_student_t WHERE student_id = @StudentID";
MySqlCommand DeleteCommand = new MySqlCommand(cmd, myConn);
DeleteCommand.Parameters.AddWithValue("@StudentID", int.Parse(idNum));
try
{
myConn.Open();
DeleteCommand.ExecuteNonQuery();
student = SearchStudent(int.Parse(idNum));
studentList.Remove(student);
}
catch (Exception)
{
}
GetMemberList = studentList;
}
private void txtBox_ID_EnterBtn(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
try
{
if (comboBox_Event.Text != "RecWeek")
{
if (db.CheckStudentID(int.Parse(txtBox_IDNum.Text)) == false)
{
lbl_fname.Visible = false;
lbl_yandc.Visible = false;
label_Name.Visible = false;
label_YearCourse.Visible = false;
lbl_notmember.Visible = true;
lbl_notmember.Text = "Not a member yet.";
lbl_notmember.Location = new Point(380, 406);
btn_Register.Enabled = false;
btn_Add.Show();
status = 1;
}
else
{
lbl_notmember.Visible = false;
btn_Add.Hide();
lbl_fname.Visible = true;
lbl_yandc.Visible = true;
label_Name.Visible = true;
label_YearCourse.Visible = true;
btn_Register.Enabled = true;
student = db.LoadFullStudentData(int.Parse(txtBox_IDNum.Text));
label_Name.Text = String.Format(student.FirstName + " " + student.LastName);
label_YearCourse.Text = String.Format(student.Year + " - " + student.Course);
status = 0;
}
}
else
{
student = db.LoadOldStudentData(int.Parse(txtBox_IDNum.Text));
if (student.StudentID != 0)
{
btn_Register.Enabled = true;
lbl_fname.Visible = true;
lbl_yandc.Visible = true;
label_Name.Visible = true;
label_YearCourse.Visible = true;
label_Name.Text = student.FullName;
label_YearCourse.Text = String.Format(student.Year + " - " + student.Course);
status = 0;
}
else
{
lbl_fname.Visible = false;
lbl_yandc.Visible = false;
label_Name.Visible = false;
label_YearCourse.Visible = false;
lbl_notmember.Visible = true;
lbl_notmember.Location = new Point(220, 406);
lbl_notmember.Text = "Student does not exist in the old database.";
btn_Register.Enabled = false;
btn_Add.Show();
status = 1;
}
}
}
catch (Exception)
{
}
}
}
public ViewStudent_Form()
{
InitializeComponent();
student = new Student();
db = new DBFunction();
}
private void FillForm(int id, string state)
{
student = new Student();
if (state == "old")
{
student = db.LoadOldStudentData(id);
txtBox_ID.Text = student.StudentID.ToString();
string[] names = student.FullName.Split(',');
txtBox_LastName.Text = names[0];
txtBox_FirstName.Text = names[1];
//student.Year = student.Year + 1;
if (student.Year == "1")
{
comboBox_Year.Text = "Freshman";
}
else if (student.Year == "2")
{
comboBox_Year.Text = "Sophomore";
}
else if (student.Year == "3")
{
comboBox_Year.Text = "Junior";
}
else if (student.Year == "4")
{
comboBox_Year.Text = "Senior";
}
else
{
//Super Senior or Graduate
comboBox_Year.Text = "Super Senior";
}
txtBox_Course.Text = student.Course;
}
else if (state == "new")
{
if (db.CheckStudentID(id) == true)
{
student = db.LoadFullStudentData(id);
txtBox_ID.Text = student.StudentID.ToString();
txtBox_LastName.Text = student.LastName;
txtBox_FirstName.Text = student.FirstName;
if (student.Year == "1")
{
comboBox_Year.Text = "Freshman";
}
else if (student.Year == "2")
{
comboBox_Year.Text = "Sophomore";
}
else if (student.Year == "3")
{
comboBox_Year.Text = "Junior";
}
else if (student.Year == "4")
{
comboBox_Year.Text = "Senior";
}
else
{
//Super Senior or Graduate
comboBox_Year.Text = "Super Senior";
}
txtBox_Course.Text = student.Course;
if (student.Gender == 1)
{
comboBox_Gender.Text = "Male";
}
else
{
comboBox_Gender.Text = "Female";
}
dateTimePicker_Birthday.Text = DateTime.Now.ToString();
if (student.Member == 1)
{
comboBox_Member.Text = "Yes";
}
else if (student.Member == 0)
{
comboBox_Member.Text = "No";
}
if (student.OldMember == 1)
{
comboBox_OldMember.Text = "Yes";
}
else if (student.OldMember == 0)
{
comboBox_OldMember.Text = "No";
}
txtBox_ContactNo.Text = student.ContactNo;
txtBox_Email.Text = student.Email;
txtBox_Household.Text = student.HouseHold;
txtBox_Commitee.Text = student.Committee;
if (student.Paid == 1)
{
comboBox_Paid.Text = "Yes";
}
else if (student.Paid == 0)
{
comboBox_Paid.Text = "No";
}
}
else
{
txtBox_ID.Text = id.ToString();
}
}
}
