private void InsertEmployee()
        {
            EmployeeVO item = new EmployeeVO
            {
                Employees_Name     = txtEmployeesName.Text,
                CodeTable_CodeID   = cboEmployeesCategory.SelectedValue.ToString(),
                Employees_Hiredate = dtpEmployeesHireDate.Value.ToShortDateString(),
                Employees_PWD      = txtEmployeesPassword.Text,
                Employees_Phone    = maskedEmployeesPhoneNumber.Text,
                Employees_Birth    = dtpEmployeesBirthDay.Value.ToShortDateString()
            };

            try
            {
                StandardService service = new StandardService();
                service.InsertEmployee(item);
            }
            catch (Exception err)
            {
                Log.WriteError(err.Message, err);
            }
        }