private void btnDelete_ButtonClick(object sender, DevExpress.XtraEditors.Controls.ButtonPressedEventArgs e)
        {
            try
            {
                CalculatorSalariesBO aCalculatorSalariesBO = new CalculatorSalariesBO();
                int ID = int.Parse(grvCalculatorSalaries.GetFocusedRowCellValue("ID").ToString());
                DialogResult result = MessageBox.Show("Bạn có muốn xóa CalculatorSalaries " + ID + " này không?", "Xóa CalculatorSalaries", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    aCalculatorSalariesBO.Delete(ID);
                    MessageBox.Show("Xóa thành công");
                    this.Reload();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("frmLst_CalculatorSalaries.btnDelete_ButtonClick\n" + ex.ToString(), "Error ", MessageBoxButtons.OK, MessageBoxIcon.Error);

            }
        }