public GradeControl(Grade grade)
        {
            InitializeComponent();

            List <Lesson> lessonlist = duombaze.Getlesson();
            List <Course> courselist = duombaze.GetCourse();
            List <Grade>  gradelist  = duombaze.GetGrade();
            string        lessonname = "";

            foreach (Lesson lesson in lessonlist)
            {
                if (grade.LessonId == lesson.Id)
                {
                    foreach (Course course in courselist)
                    {
                        if (lesson.Courseid == course.Id)
                        {
                            lessonname = course.Name;
                        }
                    }
                }
            }
            labelCourseName.Text = lessonname.ToString();
            labelGrade.Text      = "Ivertinimas:" + " " + grade.Gradenumber.ToString();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            string        courseselected = this.comboBox1.GetItemText(this.comboBox1.SelectedItem);
            int           courseid       = 0;
            int           lessonid       = 0;
            List <Course> courselist     = duombaze.GetCourse();
            List <Lesson> lessonlist     = duombaze.Getlesson();

            foreach (Course course in courselist)
            {
                if (courseselected == course.Name)
                {
                    courseid = course.Id;
                }
            }
            foreach (Lesson lesson in lessonlist)
            {
                if (lesson.Courseid == courseid)
                {
                    lessonid = lesson.Id;
                }
            }

            duombaze.RemoveLesson(lessonid, courseid);
            MessageBox.Show("Paskaita sekmingai panaikinta");
            this.Close();
        }
        private void LessonList_Load(object sender, EventArgs e)
        {
            List <Group>  grouplist  = duombaze.GetGroup();
            List <Course> courselist = duombaze.GetCourse();
            int           groupid    = 0;
            int           courseid   = 0;

            foreach (Group group in grouplist)
            {
                if (MainWindow.LoggedInUser.GetGroupName() == group.GroupName)
                {
                    groupid = group.Id;
                }
            }

            List <Lesson> lessonlist = duombaze.Getlesson();

            Console.WriteLine(duombaze.Getlesson());
            foreach (Lesson lesson in lessonlist)
            {
                if (groupid == lesson.Groupid)
                {
                    courseid = lesson.Courseid;
                    foreach (Course course in courselist)
                    {
                        if (courseid == course.Id)
                        {
                            LessonControl lol = new LessonControl(course);
                            flowLayoutPanel1.Controls.Add(lol);
                        }
                    }
                }
            }
            string coursename = null;

            foreach (Course course in courselist)
            {
                if (courseid == course.Id)
                {
                    coursename = course.Name;
                }
            }
            Console.WriteLine(courseid);
            Console.WriteLine(coursename);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            string         studentselected = this.comboBox1.GetItemText(this.comboBox1.SelectedItem);
            int            studentid       = 0;
            int            studentgrade    = 0;
            int            lessonid        = 0;
            int            teacherid       = 0;
            List <Student> studenlist      = duombaze.GetStudent();

            foreach (Student student in studenlist)
            {
                if (studentselected == student.Name + " " + student.Surname)
                {
                    studentid = student.Id;
                }
            }
            List <Grade> gradelist = duombaze.GetGrade();

            foreach (Grade grade in gradelist)
            {
                if (studentid == grade.StudentId)
                {
                    studentgrade = grade.Gradenumber;
                }
            }
            Console.WriteLine(studentgrade);
            studentgrade = Int32.Parse(this.comboBox2.GetItemText(this.comboBox2.SelectedItem));
            List <Teacher> teacherlist = duombaze.GetTeacher();

            foreach (Teacher teacher in teacherlist)
            {
                if (MainWindow.LoggedInUser.GetFullName() == teacher.Name + " " + teacher.Surname)
                {
                    teacherid = teacher.Id;
                }
            }
            List <Lesson> lessonlist = duombaze.Getlesson();

            foreach (Grade grade in gradelist)
            {
                if (teacherid == grade.TeacherId)
                {
                    foreach (Lesson lesson in lessonlist)
                    {
                        if (teacherid == lesson.Teacherid)
                        {
                            lessonid = lesson.Id;
                        }
                    }
                }
            }
            duombaze.ChangeGrade(studentgrade, studentid, teacherid, lessonid);
            MessageBox.Show("Sekmingai pakeistas pazymis!");
            this.Close();
        }
        public RemoveLesson()
        {
            InitializeComponent();
            duombaze = new UserDB();
            List <Course> courselist = duombaze.GetCourse();
            List <Lesson> lessonlist = duombaze.Getlesson();

            foreach (Course course in courselist)
            {
                foreach (Lesson lesson in lessonlist)
                {
                    if (lesson.Courseid == course.Id)
                    {
                        comboBox1.Items.Add(course.Name);
                    }
                }
            }
        }
        private void button1_Click(object sender, EventArgs e)
        {
            string         studentselected = this.comboBox1.GetItemText(this.comboBox1.SelectedItem);
            string         gradetext       = this.comboBox2.GetItemText(this.comboBox2.SelectedItem);
            int            grade           = Int32.Parse(gradetext);
            int            studentid       = 0;
            int            teacherid       = 0;
            List <Teacher> teacherlist     = duombaze.GetTeacher();

            foreach (Teacher teacher in teacherlist)
            {
                if (MainWindow.LoggedInUser.GetFullName() == teacher.Name + " " + teacher.Surname)
                {
                    teacherid = teacher.Id;
                }
            }



            int            lessonid    = 0;
            List <Student> studentlist = duombaze.GetStudent();

            foreach (Student student in studentlist)
            {
                if (studentselected == student.Name + " " + student.Surname)
                {
                    studentid = student.Id;
                }
            }
            List <Lesson> lessonlist = duombaze.Getlesson();

            foreach (Lesson lesson in lessonlist)
            {
                if (lesson.Teacherid == teacherid)
                {
                    lessonid = lesson.Id;
                }
            }

            duombaze.AddNewGrade(grade, studentid, teacherid, lessonid);
            MessageBox.Show("Pazymis sekmingai pridetas");
            this.Close();
        }
        public ChangeGrade()
        {
            InitializeComponent();
            duombaze = new UserDB();
            List <Student> studentlist    = duombaze.GetStudent();
            List <Group>   grouplist      = duombaze.GetGroup();
            List <Lesson>  lessonlist     = duombaze.Getlesson();
            List <Teacher> teacherlist    = duombaze.GetTeacher();
            int            studentgroupid = 0;
            int            teacherid      = 0;

            foreach (Teacher teacher in teacherlist)
            {
                if (MainWindow.LoggedInUser.GetFullName() == teacher.Name + " " + teacher.Surname)
                {
                    teacherid = teacher.Id;
                }
            }
            foreach (Student student in studentlist)
            {
                foreach (Group group in grouplist)
                {
                    if (student.GroupName == group.GroupName)
                    {
                        studentgroupid = group.Id;
                        foreach (Lesson lesson in lessonlist)
                        {
                            if (teacherid == lesson.Teacherid && studentgroupid == lesson.Groupid)
                            {
                                comboBox1.Items.Add(student.Name + " " + student.Surname);
                            }
                        }
                    }
                }
            }
        }