private void buttondongy_Click(object sender, EventArgs e) { var tenlop = texttenlop.Text; var phonghoc = textphonghoc.Text; if (lophoc == null) { System.Random rd = new Random(); var lop = new Classroom { //ID = Guid.NewGuid().ToString(), ID = "ML00" + rd.Next(1, 100000), Name = tenlop, Room = phonghoc }; var db = new APPQLSVDBContext(); db.Classrooms.Add(lop); db.SaveChanges(); DialogResult = DialogResult.OK; } else { var db = new APPQLSVDBContext(); var lop = db.Classrooms.Where(t => t.ID == lophoc.ID).FirstOrDefault(); lop.Name = tenlop; lop.Room = phonghoc; db.SaveChanges(); DialogResult = DialogResult.OK; } }
private void button1_Click(object sender, EventArgs e) { var firstname = txtfirstnam.Text; var lastname = txtlastname.Text; var dob = txtbirthday.Value; var pod = txtpod.Text; var gender = 0; var idclassrom = cbMalop.Text; if (rdbMale.Checked == true) { gender = 0; } else if (rdbFeMale.Checked == true) { gender = 1; } else if (rdbOthersexual.Checked == true) { gender = 3; } if (sinhvien == null) { System.Random rd = new Random(); var sv = new Student { //ID = Guid.NewGuid().ToString(), ID = "17T102" + rd.Next(1, 100000), FirstName = firstname, LastName = lastname, DateOfBirth = dob, PlaceOfBirth = pod, Gender = gender, IDClassRoom = idclassrom }; var db = new APPQLSVDBContext(); db.Students.Add(sv); db.SaveChanges(); DialogResult = DialogResult.OK; } else { var db = new APPQLSVDBContext(); var newsv = db.Students.Where(t => t.ID == sinhvien.ID).FirstOrDefault(); newsv.FirstName = firstname; newsv.LastName = lastname; newsv.DateOfBirth = dob; newsv.PlaceOfBirth = pod; newsv.Gender = gender; newsv.IDClassRoom = idclassrom; db.SaveChanges(); DialogResult = DialogResult.OK; } }
private void btnxoalop_Click(object sender, EventArgs e) { var lopdangchon = bdslophoc.Current as Classroom; if (lopdangchon != null) { var rs = MessageBox.Show("Bạn có thật sự muốn xóa không ?", "Chú ý", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning); if (rs == DialogResult.OK) { //xóa lớp đang chọn APPQLSVDBContext db = new APPQLSVDBContext(); var lop = db.Classrooms.Where(t => t.ID == lopdangchon.ID).FirstOrDefault(); if (lop != null) { db.Classrooms.Remove(lop); db.SaveChanges(); LoadDanhSachLopHoc(); } } } }
private void btnxoasinhvien_Click(object sender, EventArgs e) { var sinhviendangchon = bdssinhvien.Current as Student; if (sinhviendangchon != null) { var rs = MessageBox.Show("Bạn có thật sự muốn xóa không ?", "Chú ý", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning); if (rs == DialogResult.OK) { //xóa lớp đang chọn APPQLSVDBContext db = new APPQLSVDBContext(); var sv = db.Students.Where(t => t.ID == sinhviendangchon.ID).FirstOrDefault(); if (sv != null) { db.Students.Remove(sv); db.SaveChanges(); LoadDanhSachLopHoc(); } } } }