public void sqlLiteTest() { string PN = "LZ6AAAAAA"; string strSql = "select frequency,TDR,general from vna32port where LuxsharePN='" + PN + "'"; //DataTable dt= DbHelperOleDb.Query(strSql,DB_HTPSDBConnectionString).Tables[0]; DataTable dt = SqlLite.ExecuteDataTable(strSql); if (dt.Rows.Count != 1) { } }