can't insert record table

i wrote way includes minute reading database. i run app try perform minute i following method:

public stationary vacant addmessage(string callid, twine content)
    {
        twine name =
            "insert sporocilo (oznaka_klica, smer, vsebina, prebrano, cas_zapisa) values (@callid, 0, @content, 0, @inserttime)";
        sqlcommand cmd = new sqlcommand(select, conn);
        cmd.parameters.addwithvalue("callid", callid.tostring());
        cmd.parameters.addwithvalue("content", content);
        cmd.parameters.addwithvalue("inserttime", "10.10.2008");
        try
        {
            conn.open();
            cmd.executescalar();
        }
        catch(exception ex)
        {
            twine sdummy = ex.tostring();
        }
        finally
        {
            conn.close();
        }
    }

after slight i review annals list arrangement form. record extrinsic before modernise seen nonetheless following i exit app feeling during list i don't record.

does anyone know means such behavior?