private void chbLayers_ItemCheck(object sender, ItemCheckEventArgs e) { CheckState chS = e.NewValue; string uV = "NO"; if (chS == CheckState.Checked) { uV = "YES"; } string sOid = msUtil.getServiceOID(cmbCon.Text, cmbSrv.Text); IQueryFilter qf = new QueryFilterClass(); qf.WhereClause = "FKID = " + sOid + " and LAYERS = '" + chbLayers.Items[e.Index].ToString() + "'"; msUtil.updateLayerRow(qf, uV); }