private async void MainForm_Load(object sender, EventArgs e) { sttHeader.Caption = "ĐÃ ĐĂNG NHẬP!"; RibbonPageGroup group = ribMainMenu.GetGroupByName("grpThietLap"); ribMainMenu.SelectedPage = ribMainMenu.Pages[1]; //BarEditItem cbx //cbxHocKy.Items.addrange() dateNgay.EditValue = DateTime.Now; edtNgayTruong.EditValue = DateTime.Now; edtNgayLop.EditValue = DateTime.Now; dateNgayTruong.EditValue = DateTime.Now; dateNgayLop.EditValue = DateTime.Now; //Người ký string ngKy = File.ReadAllText("nguoiKy.txt"); string[] strs = ngKy.Split(new char[] { '|' }); txtNguoiDuyet.EditValue = strs[0]; NguoiDuyet = strs[0]; txtNguoiKy.EditValue = strs[1]; NguoiKy = strs[1]; txtTrucBan.EditValue = strs[2]; TrucBan = strs[2]; //Size string size = File.ReadAllText("coChu.txt"); string[] sizes = size.Split(new char[] { '|' }); cbxCoChuHK.EditValue = sizes[0]; sizeHocKy = Int16.Parse(sizes[0]); cbxCoChuTuan.EditValue = sizes[1]; sizeTuan = Int16.Parse(sizes[1]); cbxCoChuNgay.EditValue = sizes[2]; sizeNgay = Int16.Parse(sizes[2]); //HocKy string _hk = File.ReadAllText("hocKy.txt"); string[] hk = _hk.Split(new char[] { '|' }); HocKy = await apis.GetHocKy(hk[0], Int16.Parse(hk[1])); //Binding bd = new Binding("", hks, "ten"); //cbxHocKy.DataBindings.Add(bd); if (HocKy == null) { ribMainMenu.Enabled = false; return; } lblHocKy.Caption = HocKy.ToString(); cbxNamHoc.EditValue = HocKy.namHoc; cbxHocKy.EditValue = hk[1]; }