private void btnSave_Click(object sender, EventArgs e)
        {
            try
            {
                DialogResult dialogResult = MessageBox.Show("SAVE DATA? \nMAKE SURE ALL THE FORM FIELDS FILLED CORRECTLY", "DATA ENTRY", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
                if (dialogResult == DialogResult.Yes)
                {
                    if (tbEmpPassword.Text != tbEmpRepeatPassword.Text)
                    {
                        MessageBox.Show("PASSWORD MISSMATCH", "INCORECT PASSWORD", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                        tbEmpPassword.Clear();
                        tbEmpRepeatPassword.Clear();
                        tbEmpPassword.Focus();
                    }
                    else
                    {
                        if (tbEmpNIP.Text == "" || tbEmpName.Text == "" || tbEmpEmail.Text == "" || tbEmpPhone.Text == "" || tbEmpPhoto.Text == "" || dtpEmpDOB.Text == DateTime.Today.ToShortDateString() || cbEmpGender.Text == "-----SELECT GENDER-----" || cbEmpDivision.Text == "-----SELECT DIVISION-----" || cbEmpPosition.Text == "-----SELECT POSITION-----")
                        {
                            MessageBox.Show("FORM FIELD(S) CAN NOT BE LEFT EMPTY. PLEASE COMPLETE THE FORM TO SAVE DATA", "DATA ENTRY ERROR", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                            tbEmpNIP.Focus();
                        }
                        else
                        {
                            string EmployeeNIP = tbEmpNIP.Text;
                            string EmployeePassword = tbEmpRepeatPassword.Text;
                            string EmployeeName = tbEmpName.Text;
                            string EmployeeGender = cbEmpGender.Text;
                            string EmployeeDOB = dtpEmpDOB.Text;
                            string EmployeeEmail = tbEmpEmail.Text;
                            string EmployeePhone = tbEmpPhone.Text;
                            string EmployeePhoto = tbEmpPhoto.Text;
                            string DivisionID = cbEmpDivision.Text.Substring(0, 1);
                            string PositionID = cbEmpPosition.Text.Substring(0, 1);

                            Admin A = new Admin();
                            A.AddEmployee(EmployeeNIP, EmployeePassword, EmployeeName, EmployeeGender, EmployeeDOB, EmployeeEmail, EmployeePhone, EmployeePhoto, DivisionID, PositionID);

                            tbEmpNIP.Clear();
                            tbEmpName.Clear();
                            cbEmpGender.Text = "-----SELECT GENDER-----";
                            dtpEmpDOB.Text = DateTime.Today.ToShortDateString();
                            tbEmpEmail.Clear();
                            tbEmpPhone.Clear();
                            tbEmpPhoto.Clear();
                            cbEmpDivision.Text = "-----SELECT DIVISION-----";
                            cbEmpPosition.Text = "-----SELECT POSITION-----";
                            tbEmpPassword.Clear();
                            tbEmpRepeatPassword.Clear();

                            MessageBox.Show("DATA SAVED", "ENTRY DATA SUCCESSFUL", MessageBoxButtons.OK, MessageBoxIcon.Information);

                            RefreshFormEmployee();
                        }
                    }
                }
            }
            catch (SqlException)
            {
                MessageBox.Show("MICROSOFT SQL SERVER DATABASE ERROR!", "ERROR OCCURS", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            catch (InvalidOperationException)
            {
                MessageBox.Show("INVALID OPERATION!", "ERROR OCCURS", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString(), "ERROR OCCURS", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }