private void grvPhim_CellClick(object sender, DataGridViewCellEventArgs e) { if (grvPhim.Rows[e.RowIndex].Cells[e.ColumnIndex].Value != null) { grvPhim.CurrentRow.Selected = true; tbIdPhim.Text = grvPhim.Rows[e.RowIndex].Cells["IdPhim"].FormattedValue.ToString(); tbTenPhim.Text = grvPhim.Rows[e.RowIndex].Cells["TenPhim"].FormattedValue.ToString(); cbTheLoai.Items.Clear(); cbQuocGia.Items.Clear(); cbTheLoai.Items.Add(grvPhim.Rows[e.RowIndex].Cells["TheLoai"].FormattedValue.ToString()); cbTheLoai.SelectedItem = cbTheLoai.Items[0]; cbQuocGia.Items.Add(grvPhim.Rows[e.RowIndex].Cells["QuocGia"].FormattedValue.ToString()); cbQuocGia.SelectedItem = cbQuocGia.Items[0]; tbDiemDanhGia.Text = grvPhim.Rows[e.RowIndex].Cells["DiemDanhGia"].FormattedValue.ToString(); cbNhanVien.Items.Clear(); cbRapChieu.Items.Clear(); DataTable dtnv = obj.HienThiTTNhanVien(tbIdPhim.Text); foreach (DataRow row in dtnv.Rows) { cbNhanVien.Items.Add($"{row["TenNV"].ToString()} \t {row["ChucVu"].ToString()}"); } DataTable dtr = obj.HienThiTTRap(tbIdPhim.Text); foreach (DataRow row in dtr.Rows) { cbRapChieu.Items.Add($"{row["TenRap"].ToString()} \t {row["DiaChi"].ToString()}"); } } }