c# - using Outlook.AppointmentItem oAppointment for a specific user -

i've done research on , not been able find example exact problem, although there lot apologies if i've missed it.

i have code add appointment outlook calendar automatically, , send email recipient. want able add public calendar on generic username... code use adds user calendar logged in.

heres code on press of button:

    private void button1_click(object sender, eventargs e)     {         string name = "test name";         datetime startdate = new datetime(2015, 4, 2);         datetime enddate = new datetime(2015, 4, 2);           outlook.application outlookapp = new outlook.application(); // creates new outlook app         outlook.appointmentitem oappointment = (outlook.appointmentitem)outlookapp.createitem(outlook.olitemtype.olappointmentitem); // creates new appointment          oappointment.subject = "enquiry changes made " + name + "'s enquiry"; // set subject         oappointment.body = "this appointment body of appointment written"; // set body         oappointment.location = "the location"; // set location         oappointment.start = convert.todatetime(startdate); // set start date          oappointment.end = convert.todatetime(enddate); // end date          oappointment.reminderset = true; // set reminder         oappointment.reminderminutesbeforestart = 15; // reminder time         oappointment.importance = outlook.olimportance.olimportancehigh; // appointment importance         oappointment.busystatus = outlook.olbusystatus.olbusy;          oappointment.save();          outlook.mailitem mailitem = oappointment.forwardasvcal();          // email address send          mailitem.to = "genericemail@provider.com";          // send          mailitem.send();     } 

thanks can give me.... , clarify, want able add appointment specific users calendar, not user logged onto machine.

here link extremely similar not have accepted answered: how set appointment other users on outlook?

using outlook exchange api solved issue:

//this initialize exchange web service object         exchangeservice exchangeservice = new exchangeservice(exchangeversion.exchange2013);         //setting service url         try         {             exchangeservice.autodiscoverurl("emailaddress@domain.co.uk");         }         catch (autodiscoverlocalexception ex)         {             //if auto discover url fails mannualy configure exchange service url             exchangeservice.url = new uri("https://yourexchangename/ews/exchange.asmx");             console.writeline(ex.message);         }         exchangeservice.credentials = new webcredentials("username", "password", "domain");         //or         exchangeservice.credentials = new networkcredential("username", "password", "domain");          appointment appointment = new appointment(exchangeservice);         appointment.subject = "sample subject";         appointment.body = "sample body";         appointment.start = new datetime(2015, 4, 1, 8, 0, 0);         appointment.end = appointment.start.addhours(9.5);         // occurs every weeks on tuesday , thursday         appointment.save(); 

this bit of code try 3 ways connect specific user account, in case generic user shared calendar kept. second part of code add appointment directly calendar.... hope helps people