public CoursesForTheSemester(OStudent student, String connectionString)
{
s = student;
dt = new DataTable();
this.connectionString = connectionString;
InitializeComponent();
}
public StudentSchedule(String co, OStudent s)
{
this.connectionString = co;
this.student = s;
this.dtSchedule = new MyDataTableSchedule();
InitializeComponent();
}
public void login_run(String un, String pass, Form login_form)
{
DBC newcon = new DBC();
List <String> userinfo = newcon.get_row_by_username(un);
if (userinfo.Count > 0)
{
if (userinfo[1].Replace(" ", "") == pass)
{
//MessageBox.Show("succesfully loged in ");
if (Convert.ToInt32(userinfo[2]) == (int)permission.admin)
{
nperson = new Admin(userinfo);
(nperson as Admin).run(login_form);
}
else if (Convert.ToInt32(userinfo[2]) == (int)permission.sec)
{
nperson = new Secretary(userinfo);
(nperson as Secretary).run(login_form);
}
else if (Convert.ToInt32(userinfo[2]) == (int)permission.prac)
{
nperson = new Teacher(userinfo);
(nperson as Teacher).run(login_form);
}
else if (Convert.ToInt32(userinfo[2]) == (int)permission.lect)
{
nperson = new Teacher(userinfo);
(nperson as Teacher).run(login_form);
}
else if (Convert.ToInt32(userinfo[2]) == (int)permission.md)
{
nperson = new deptmanager(userinfo);
(nperson as deptmanager).run(login_form);
}
else if (Convert.ToInt32(userinfo[2]) == (int)permission.student)
{
char year;
OPerson p;
year = newcon.getStudyYear(userinfo[0]);
p = new OStudent(userinfo[0], userinfo[3], userinfo[4], userinfo[5], year);
MainStudent ms = new MainStudent(p as OStudent, constring);
login_form.Hide();
ms.ShowDialog(login_form);
}
}
else
{
MessageBox.Show("wrong password");
}
}
else
{
MessageBox.Show("wrong username or password");
}
}
public DataTable StudentFindHisCourses(OStudent s, SqlConnection c)
{
c.Open();
SqlDataAdapter da = new SqlDataAdapter("SELECT Id,Name FROM Courses WHERE Id IN(SELECT CourseID FROM Constraints WHERE Constraints.Id IN(SELECT LessonID FROM Lesson WHERE StudentID LIKE '" + s.ID + "'))", c);
//SqlDataAdapter da = new SqlDataAdapter("SELECT Id,Name FROM Courses WHERE Id IN(SELECT CourseID FROM Constraints WHERE Id IN(SELECT LessonID FROM Lesson WHERE Lesson.StudentID LIKE'" + s.ID + "'))", c);
DataTable dt = new DataTable();
da.Fill(dt);
c.Close();
return(dt);
}
public EmailsOfLecturers(OStudent student, String connectionString)
{
InitializeComponent();
dt.Columns.Add("lecturer name", typeof(string));
dt.Columns.Add("email", typeof(string));
List <OPerson> lecturers = Queries.selectLecturersOfStudent(student, connectionString);
foreach (OPerson lec in lecturers)
{
dt.Rows.Add(new object[] { lec.FName.Trim() + " " + lec.LName.Trim(), lec.Email.Trim() });
}
dataGridView1.DataSource = dt;
}
public static List <OCourse> selectCoursesOfStudent(OStudent student, String connectionString)
{
List <OCourse> electiveCourses = new List <OCourse>();
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = connectionString;
conn.Open();
SqlCommand command = new SqlCommand("SELECT * FROM Courses WHERE Id IN(SELECT CourseID FROM Constraints WHERE Confirmed=1 Id IN(SELECT LessonID FROM Lesson WHERE StudentID=" + student.ID + "))", conn);
using (SqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
electiveCourses.Add(new OCourse(reader[0].ToString(), reader[1].ToString(), reader[2].ToString(), reader[3].ToString(), reader[4].ToString(), reader[5].ToString(), reader[6].ToString(), reader[7].ToString()));
}
}
conn.Close();
}
return(electiveCourses);
}
// Select lecturers that teaches the student
public static List <OPerson> selectLecturersOfStudent(OStudent student, String connectionString)
{
List <OPerson> lecturers = new List <OPerson>();
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = connectionString;
conn.Open();
SqlCommand command = new SqlCommand("SELECT userid,first_name,last_name,Email FROM Users WHERE userid IN(SELECT LecturerID FROM Constraints WHERE Confirmed=1 AND Id IN(SELECT LessonID FROM Lesson WHERE StudentID=" + student.ID + "))", conn);
using (SqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
lecturers.Add(new OPerson(reader[0].ToString(), reader[1].ToString(), reader[2].ToString(), reader[3].ToString()));
}
}
conn.Close();
}
return(lecturers);
}
public StudentEditSchedule(String co, OStudent s)
{
this.connectionString = co;
this.student = s;
InitializeComponent();
}
public MainStudent(OStudent student, String connectionString)
{
this.student = student;
this.connectionString = connectionString;
InitializeComponent();
}
/*this func send massege if user name empy*/
private void Login_Click(object sender, EventArgs e)
{
SqlConnection c = new SqlConnection(scn);
if (string.IsNullOrEmpty(Usertxt.Text)) //if string empty
{
MessageBox.Show("Please enter your user name", "Message", MessageBoxButtons.OK, MessageBoxIcon.Warning); //shoe warning
Usertxt.Focus(); //focus on username box
return; //end
}//end click
if (string.IsNullOrEmpty(txtPassword.Text)) //if string empty
{
MessageBox.Show("Please enter your user password", "Message", MessageBoxButtons.OK, MessageBoxIcon.Warning); //shoe warning
Usertxt.Focus(); //focus on username box
return; //end
}
String q = "select Users.userid,Users.permission,Users.first_name,Users.last_name,Users.Email from Users where username like '" + Usertxt.Text.ToString() + "' and Users.password like '" + txtPassword.Text + "'";
SqlDataAdapter da = new SqlDataAdapter(q, c);
DataTable dt = new DataTable();
if (c.State != ConnectionState.Open)
{
c.Open();
}
da.Fill(dt);
if (dt.Rows.Count == 0)
{
MessageBox.Show("incorect username and password", "Message", MessageBoxButtons.OK, MessageBoxIcon.Warning);//shoe warning
}
else if (dt.Rows.Count >= 2)
{
MessageBox.Show("more then one account", "Message", MessageBoxButtons.OK, MessageBoxIcon.Warning);//shoe warning
}
else
{
if (dt.Rows[0].Field <int>("permission") == 5)
{
c.Close(); //c is bussy so close
c.Open(); //open to new connection.
da = new SqlDataAdapter("select Year from Student where username like '" + Usertxt.Text.ToString() + "'", c); //get year
DataTable dr = new DataTable(); //
da.Fill(dr);
OStudent s = new OStudent(dt.Rows[0].Field <int>("userid").ToString(), dt.Rows[0].Field <String>("first_name").ToString(), dt.Rows[0].Field <String>("last_name").ToString(), dt.Rows[0].Field <String>("Email").ToString(), dr.Rows[0].Field <String>("Year")[0]);
c.Close();
MainStudent f = new MainStudent(s, scn);
this.Hide();
f.ShowDialog(this);
}
if (dt.Rows[0].Field <int>("permission") == 1)
{
c.Close();//c is bussy so close
MenuStudentCoordinator f = new MenuStudentCoordinator(scn);
this.Hide();
f.ShowDialog(this);
}
if (dt.Rows[0].Field <int>("permission") == 3)
{
c.Close();//c is bussy so close
OLecture l = new OLecture(dt.Rows[0].Field <int>("userid").ToString(), dt.Rows[0].Field <String>("first_name").ToString(), dt.Rows[0].Field <String>("last_name").ToString(), dt.Rows[0].Field <String>("Email").ToString());
c.Close();
MenuLecturer f = new MenuLecturer(l, c);
this.Hide();
f.ShowDialog(this);
}
if (dt.Rows[0].Field <int>("permission") == 2)
{
c.Close();//c is bussy so close
OTutor t = new OTutor(dt.Rows[0].Field <int>("userid").ToString(), dt.Rows[0].Field <String>("first_name").ToString(), dt.Rows[0].Field <String>("last_name").ToString(), dt.Rows[0].Field <String>("Email").ToString());
c.Close();
MenuTutor f = new MenuTutor(c, t);
this.Hide();
f.ShowDialog(this);
}
}
}
