// •Û‘¶ private void btnSave_Click(object sender, EventArgs e) { TfSQL tfsql = new TfSQL(); bool save = tfsql.sqlMultipleInsertItem(DrawingCd, ref dt, User); if (save) { dgvTester.AllowUserToAddRows = false; dgvTester.ReadOnly = true; btnSave.Enabled = false; btnAdd.Enabled = true; } }