private void btnSave_Click(object sender, EventArgs e) { var model = new StaffModel(); model.STAFF_CONTACT = txtSTAFF_CONTACT.Text; model.STAFF_EMAIL = txtSTAFF_EMAIL.Text; model.STAFF_NAME = txtSTAFF_NAME.Text; model.ROOM_NAME = txtROOM_NAME.Text; model.BUILDING_NAME = txtBUILDING_NAME.Text; model.LOCATION_NAME = txtLOCATION_NAME.Text; int.TryParse(txtID.Text, out int id); model.ID = id; if (model.Validate() == false) { MessageBox.Show(this, "All values are required", "Save Action failed !", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } model.Save(); txtID.Text = model.ID.ToString(); txtSTAFF_EMAIL.Focus(); txtSTAFF_EMAIL.Select(); }