我已下载Google.Apis名称空间：
using Google.Apis.Auth.OAuth2;
using Google.Apis.Calendar.v3;
using Google.Apis.Calendar.v3.Data;
using Google.Apis.Services;
我花了整整一天的时间在网上查看.NET示例，了解如何通过了解他们的电子邮件地址将事件添加到某人日历中。
我尝试了以下代码，但是它会带来错误，很明显它不会起作用：
Public void Method(string email, string text)
{
UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
new ClientSecrets
{
ClientId = "CLIENTID",
ClientSecret = "CLIENTSECRET",
},
new[] { CalendarService.Scope.Calendar },
"user",
CancellationToken.None).Result;
// Create the service.
var service = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Calendar API Sample",
});
Event event1 = new Event()
{
Summary = "Something",
Location = "Somewhere",
Start = new EventDateTime() {
DateTime = DateTime.Now,
TimeZone = "America/Los_Angeles"
},
End = new EventDateTime() {
DateTime = DateTime.Now,
TimeZone = "America/Los_Angeles"
},
Attendees = new List<EventAttendee>()
{
new EventAttendee() { Email: email } //bringing up an error "Syntax ',' expected
}
};
Event thisevent = service.Events.Insert(event1, "primary").Fetch(); // Another error. "Does not contain a definition for Fetch"
}
任何帮助表示赞赏！甚至其他代码的样本：）
答案 0 :(得分：11)
在您创建事件并插入事件的部分中存在语法错误。以下是一个具有Google API .NET库正确语法的代码段：
Event myEvent = new Event
{
Summary = "Appointment",
Location = "Somewhere",
Start = new EventDateTime() {
DateTime = new DateTime(2014, 6, 2, 10, 0, 0),
TimeZone = "America/Los_Angeles"
},
End = new EventDateTime() {
DateTime = new DateTime(2014, 6, 2, 10, 30, 0),
TimeZone = "America/Los_Angeles"
},
Recurrence = new String[] {
"RRULE:FREQ=WEEKLY;BYDAY=MO"
},
Attendees = new List<EventAttendee>()
{
new EventAttendee() { Email = "johndoe@gmail.com" }
}
};
Event recurringEvent = service.Events.Insert(myEvent, "primary").Execute();
答案 1 :(得分：1)
public static string ApplicationName = "Google Console ApplicationName";
public static string ClientId = "Google Console ClientId";
public static string ClientSecret = "Google Console ClientSecret";
public static string RedirectURL = "Google Console RedirectURL";
public static ClientSecrets GoogleClientSecrets = new ClientSecrets()
{
ClientId = ClientId,
ClientSecret = ClientSecret
};
public static string[] Scopes =
{
CalendarService.Scope.Calendar,
CalendarService.Scope.CalendarReadonly
};
public static UserCredential GetUserCredential(out string error)
{
UserCredential credential = null;
error = string.Empty;
try
{
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
new ClientSecrets
{
ClientId = ClientId,
ClientSecret = ClientSecret
},
Scopes,
Environment.UserName,
CancellationToken.None,
null).Result;
}
catch (Exception ex)
{
credential = null;
error = "Failed to UserCredential Initialization: " + ex.ToString();
}
return credential;
}
public static IAuthorizationCodeFlow GoogleAuthorizationCodeFlow(out string error)
{
IAuthorizationCodeFlow flow = null;
error = string.Empty;
try
{
flow = new GoogleAuthorizationCodeFlow(new GoogleAuthorizationCodeFlow.Initializer
{
ClientSecrets = GoogleClientSecrets,
Scopes = Scopes
});
}
catch (Exception ex)
{
flow = null;
error = "Failed to AuthorizationCodeFlow Initialization: " + ex.ToString();
}
return flow;
}
public static UserCredential GetGoogleUserCredentialByRefreshToken(string refreshToken, out string error)
{
TokenResponse respnseToken = null;
UserCredential credential = null;
string flowError;
error = string.Empty;
try
{
// Get a new IAuthorizationCodeFlow instance
IAuthorizationCodeFlow flow = GoogleAuthorizationCodeFlow(out flowError);
respnseToken = new TokenResponse() { RefreshToken = refreshToken };
// Get a new Credential instance
if ((flow != null && string.IsNullOrWhiteSpace(flowError)) && respnseToken != null)
{
credential = new UserCredential(flow, "user", respnseToken);
}
// Get a new Token instance
if (credential != null)
{
bool success = credential.RefreshTokenAsync(CancellationToken.None).Result;
}
// Set the new Token instance
if (credential.Token != null)
{
string newRefreshToken = credential.Token.RefreshToken;
}
}
catch (Exception ex)
{
credential = null;
error = "UserCredential failed: " + ex.ToString();
}
return credential;
}
public static CalendarService GetCalendarService(string refreshToken, out string error)
{
CalendarService calendarService = null;
string credentialError;
error = string.Empty;
try
{
var credential = GetGoogleUserCredentialByRefreshToken(refreshToken, out credentialError);
if (credential != null && string.IsNullOrWhiteSpace(credentialError))
{
calendarService = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName
});
}
}
catch (Exception ex)
{
calendarService = null;
error = "Calendar service failed: " + ex.ToString();
}
return calendarService;
}
public static string AddCalenderEvents(string refreshToken, string emailAddress, string summary, DateTime? start, DateTime? end, out string error)
{
string eventId = string.Empty;
error = string.Empty;
string serviceError;
try
{
var calendarService = GetCalendarService(refreshToken, out serviceError);
if (calendarService != null && string.IsNullOrWhiteSpace(serviceError))
{
var list = calendarService.CalendarList.List().Execute();
var calendar = list.Items.SingleOrDefault(c => c.Summary == emailAddress);
if (calendar != null)
{
Google.Apis.Calendar.v3.Data.Event calenderEvent = new Google.Apis.Calendar.v3.Data.Event();
calenderEvent.Summary = summary;
//calenderEvent.Description = summary;
//calenderEvent.Location = summary;
calenderEvent.Start = new Google.Apis.Calendar.v3.Data.EventDateTime
{
//DateTime = new DateTime(2018, 1, 20, 19, 00, 0)
DateTime = start//,
//TimeZone = "Europe/Istanbul"
};
calenderEvent.End = new Google.Apis.Calendar.v3.Data.EventDateTime
{
//DateTime = new DateTime(2018, 4, 30, 23, 59, 0)
DateTime = start.Value.AddHours(12)//,
//TimeZone = "Europe/Istanbul"
};
calenderEvent.Recurrence = new List<string>();
//Set Remainder
calenderEvent.Reminders = new Google.Apis.Calendar.v3.Data.Event.RemindersData()
{
UseDefault = false,
Overrides = new Google.Apis.Calendar.v3.Data.EventReminder[]
{
new Google.Apis.Calendar.v3.Data.EventReminder() { Method = "email", Minutes = 24 * 60 },
new Google.Apis.Calendar.v3.Data.EventReminder() { Method = "popup", Minutes = 24 * 60 }
}
};
#region Attendees
//Set Attendees
calenderEvent.Attendees = new Google.Apis.Calendar.v3.Data.EventAttendee[] {
new Google.Apis.Calendar.v3.Data.EventAttendee() { Email = "kaptan.cse@gmail.com" },
new Google.Apis.Calendar.v3.Data.EventAttendee() { Email = emailAddress }
};
#endregion
var newEventRequest = calendarService.Events.Insert(calenderEvent, calendar.Id);
newEventRequest.SendNotifications = true;
var eventResult = newEventRequest.Execute();
eventId = eventResult.Id;
}
}
}
catch (Exception ex)
{
eventId = string.Empty;
error = ex.Message;
}
return eventId;
}
public static Google.Apis.Calendar.v3.Data.Event UpdateCalenderEvents(string refreshToken, string emailAddress, string summary, DateTime? start, DateTime? end, string eventId, out string error)
{
Google.Apis.Calendar.v3.Data.Event eventResult = null;
error = string.Empty;
string serviceError;
try
{
var calendarService = GetCalendarService(refreshToken, out serviceError);
if (calendarService != null)
{
var list = calendarService.CalendarList.List().Execute();
var calendar = list.Items.SingleOrDefault(c => c.Summary == emailAddress);
if (calendar != null)
{
// Define parameters of request
EventsResource.ListRequest request = calendarService.Events.List("primary");
request.TimeMin = DateTime.Now;
request.ShowDeleted = false;
request.SingleEvents = true;
request.MaxResults = 10;
request.OrderBy = EventsResource.ListRequest.OrderByEnum.StartTime;
// Get selected event
Google.Apis.Calendar.v3.Data.Events events = request.Execute();
var selectedEvent = events.Items.FirstOrDefault(c => c.Id == eventId);
if (selectedEvent != null)
{
selectedEvent.Summary = summary;
selectedEvent.Start = new Google.Apis.Calendar.v3.Data.EventDateTime
{
DateTime = start
};
selectedEvent.End = new Google.Apis.Calendar.v3.Data.EventDateTime
{
DateTime = start.Value.AddHours(12)
};
selectedEvent.Recurrence = new List<string>();
// Set Remainder
selectedEvent.Reminders = new Google.Apis.Calendar.v3.Data.Event.RemindersData()
{
UseDefault = false,
Overrides = new Google.Apis.Calendar.v3.Data.EventReminder[]
{
new Google.Apis.Calendar.v3.Data.EventReminder() { Method = "email", Minutes = 24 * 60 },
new Google.Apis.Calendar.v3.Data.EventReminder() { Method = "popup", Minutes = 24 * 60 }
}
};
// Set Attendees
selectedEvent.Attendees = new Google.Apis.Calendar.v3.Data.EventAttendee[]
{
new Google.Apis.Calendar.v3.Data.EventAttendee() { Email = "kaptan.cse@gmail.com" },
new Google.Apis.Calendar.v3.Data.EventAttendee() { Email = emailAddress }
};
}
var updateEventRequest = calendarService.Events.Update(selectedEvent, calendar.Id, eventId);
updateEventRequest.SendNotifications = true;
eventResult = updateEventRequest.Execute();
}
}
}
catch (Exception ex)
{
eventResult = null;
error = ex.ToString();
}
return eventResult;
}
public static void DeletCalendarEvents(string refreshToken, string emailAddress, string eventId, out string error)
{
string result = string.Empty;
error = string.Empty;
string serviceError;
try
{
var calendarService = GetCalendarService(refreshToken, out serviceError);
if (calendarService != null)
{
var list = calendarService.CalendarList.List().Execute();
var calendar = list.Items.FirstOrDefault(c => c.Summary == emailAddress);
if (calendar != null)
{
// Define parameters of request
EventsResource.ListRequest request = calendarService.Events.List("primary");
request.TimeMin = DateTime.Now;
request.ShowDeleted = false;
request.SingleEvents = true;
request.MaxResults = 10;
request.OrderBy = EventsResource.ListRequest.OrderByEnum.StartTime;
// Get selected event
Google.Apis.Calendar.v3.Data.Events events = request.Execute();
var selectedEvent = events.Items.FirstOrDefault(c => c.Id == eventId);
if (selectedEvent != null)
{
var deleteEventRequest = calendarService.Events.Delete(calendar.Id, eventId);
deleteEventRequest.SendNotifications = true;
deleteEventRequest.Execute();
}
}
}
}
catch (Exception ex)
{
result = string.Empty;
error = ex.ToString();
}
}
public static void Run()
{
string refreshToken = string.Empty;
string credentialError;
var credential = GetUserCredential(out credentialError);
if (credential != null && string.IsNullOrWhiteSpace(credentialError))
{
//Save RefreshToken into Database
refreshToken = credential.Token.RefreshToken;
}
string addEventError;
string calendarEventId = string.Empty;
calendarEventId = AddCalenderEvents(refreshToken, "kaptan.cse@gmail.com", "My Calendar Event", DateTime.Now, DateTime.Now.AddHours(12), out addEventError);
string updateEventError;
if (!string.IsNullOrEmpty(calendarEventId))
{
UpdateCalenderEvents(refreshToken, "kaptan.cse@gmail.com", "Modified Calendar Event ", DateTime.Now, DateTime.Now.AddDays(1), calendarEventId, out updateEventError);
}
string deleteEventError;
if (!string.IsNullOrEmpty(calendarEventId))
{
DeletCalendarEvents(refreshToken, "kaptan.cse@gmail.com", calendarEventId, out deleteEventError);
}
}
}