private void btnDelete_Click(object sender, EventArgs e) { if (String.IsNullOrEmpty(txtCode.Text)) { frmMessageBoxFillNull frm = new frmMessageBoxFillNull(); frm.ShowDialog(); } else { frmMessageBoxDelete frm = new frmMessageBoxDelete(); if (frm.ShowDialog() == DialogResult.OK) { String cod = txtCode.Text; serviceDA.deleteEmployee(cod); frmSearchUser fm = Owner as frmSearchUser; fm.dgvSearch.AutoGenerateColumns = false; fm.dgvSearch.DataSource = serviceDA.queryAllEmployee(); this.Close(); } } }