private void btnEdit_Click(object sender, EventArgs e)
        {
            try
            {
                DialogResult dialogResult = MessageBox.Show("DO YOU WANT TO EDIT THIS EMPLOYEE DATA?", "EDIT EMPLOYEE DETAILS", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
                if (dialogResult == DialogResult.Yes)
                {
                    if (tbEditEmpNIP.Text == "" || tbEditEmpName.Text == "" || tbEditEmpEmail.Text == "" || tbEditEmpPhone.Text == "" || dtpEditEmpDOB.Text == DateTime.Today.ToShortDateString() || cbEditEmpGender.Text == "-----SELECT GENDER-----" || cbEditEmpDivision.Text == "-----SELECT DIVISION-----" || cbEditEmpPosition.Text == "-----SELECT POSITION-----")
                    {
                        MessageBox.Show("FORM FIELD(S) CAN NOT BE LEFT EMPTY. PLEASE COMPLETE THE FORM TO EDIT DATA", "DATA UPDATION ERROR", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                        tbEditEmpEmail.Focus();
                    }
                    else
                    {
                        string EmployeeNIP = tbEditEmpNIP.Text;
                        string EmployeeName = tbEditEmpName.Text;
                        string EmployeeGender = cbEditEmpGender.Text;
                        string EmployeeDOB = dtpEditEmpDOB.Text;
                        string EmployeeEmail = tbEditEmpEmail.Text;
                        string EmployeePhone = tbEditEmpPhone.Text;
                        string DivisionID = cbEditEmpDivision.Text.Substring(0, 1);
                        string PositionID = cbEditEmpPosition.Text.Substring(0, 1);

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

                        tbEditEmpNIP.Clear();
                        tbEditEmpName.Clear();
                        cbEditEmpGender.Text = "-----SELECT GENDER-----";
                        dtpEditEmpDOB.Text = DateTime.Today.ToShortDateString();
                        tbEditEmpEmail.Clear();
                        tbEditEmpPhone.Clear();
                        cbEditEmpDivision.Text = "-----SELECT DIVISION-----";
                        cbEditEmpPosition.Text = "-----SELECT POSITION-----";

                        MessageBox.Show("DATA UPDATED", "UPDATE 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);
            }
        }