//SAVE SURVEYOR DATA
        private void UserDataSave()
        {
            try
            {
                if (//CHECK TEXBOXES NOT NULL OR EMPTY
                    String.IsNullOrWhiteSpace(txtEmpRegNo.Text) ||
                    String.IsNullOrWhiteSpace(txtName.Text) ||
                    String.IsNullOrWhiteSpace(cbxSurveyorType.Text) ||
                    String.IsNullOrWhiteSpace(txtMobile.Text) ||
                    String.IsNullOrWhiteSpace(txtEmail.Text)
                    )
                {
                    MessageBox.Show("You must be filling all field!.", "Surveyor Registration", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                else
                {
                    if (objClassBLL.ExistSurveyor(_division, txtEmpRegNo.Text) == false)
                    {
                        //PROPERTIES FOR DATA ADD
                        objClassBLL = new SurveyorClassBLL()
                        {
                            date          = DateTime.Today,
                            emp_reg_no    = txtEmpRegNo.Text,
                            initail_name  = txtName.Text,
                            surveyor_type = cbxSurveyorType.Text.ToString(),
                            mobile        = txtMobile.Text,
                            email         = txtEmail.Text,
                            division      = _division,
                            username      = _username
                        };
                        //INSERT DATA TO DATABASE
                        objClassBLL.AddNewSurveyor();
                        MessageBox.Show("Surveyor registration successfully!", "Surveyor Registration", MessageBoxButtons.OK, MessageBoxIcon.Information);

                        //CLEAR ALL TEXBOX AND COMBOBOX
                        ClearTextBoxces();

                        //LOAD USER DATA
                        LoadDataDgv();

                        //SET TO BUTTON TEXT Add
                        btnAdd.Text = "Add";

                        txtEmpRegNo.Enabled = true;
                    }

                    else
                    {
                        MessageBox.Show("Already exist this surveyor!", "Surveyor Registration", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "USER ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }