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C#

MS Graph Calendar List Events

See more Microsoft Calendar Examples

Retrieve a list of events in a calendar. The list contains single instance meetings and series masters.

For more details, see https://docs.microsoft.com/en-us/graph/api/calendar-list-events?view=graph-rest-1.0

Chilkat C# Downloads

C#
bool success = false;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();

//  Use your previously obtained access token as shown here:
//     Get Microsoft Graph OAuth2 Access Token with Calendars.ReadWrite scope.

Chilkat.JsonObject jsonToken = new Chilkat.JsonObject();
success = jsonToken.LoadFile("qa_data/tokens/msGraphCalendar.json");
if (success == false) {
    Debug.WriteLine(jsonToken.LastErrorText);
    return;
}

http.AuthToken = jsonToken.StringOf("access_token");

//  Specify the calendar id
http.SetUrlVar("id","AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAgEGAAAA5_vF7TKKdE6bGCRqXyl2PQAClEpRTgAAAA==");
//  Send a GET request to https://graph.microsoft.com/v1.0/me/calendars/{$id}/events
string strResponse = http.QuickGetStr("https://graph.microsoft.com/v1.0/me/calendars/{$id}/events");
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.Load(strResponse);
json.EmitCompact = false;

if (http.LastStatus != 200) {
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Failed, response status code = " + Convert.ToString(http.LastStatus));
    return;
}

Debug.WriteLine(json.Emit());

//  Sample output:
//  (See parsing code below..)

//  {
//    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('admin%40chilkat.io')/calendars('AQMkADAwATM0MDAAMS1i ... AClEpRTgAAAA%3D%3D')/events",
//    "value": [
//      {
//        "@odata.etag": "W/\"5+vF7TKKdE6bGCRqXyl2PQAClIgmmw==\"",
//        "id": "AQMkADAwATM0MDAAM ... AApRZ7JkAAAA=",
//        "createdDateTime": "2019-04-26T14:31:39.8791929Z",
//        "lastModifiedDateTime": "2019-04-26T14:31:41.2753537Z",
//        "changeKey": "5+vF7TKKdE6bGCRqXyl2PQAClIgmmw==",
//        "categories": [
//        ],
//        "originalStartTimeZone": "Pacific Standard Time",
//        "originalEndTimeZone": "Pacific Standard Time",
//        "iCalUId": "040000008200E ... A230FEBFE5F7486A",
//        "reminderMinutesBeforeStart": 15,
//        "isReminderOn": true,
//        "hasAttachments": false,
//        "subject": "Let's go for lunch",
//        "bodyPreview": "Does mid month work for you?",
//        "importance": "normal",
//        "sensitivity": "normal",
//        "isAllDay": false,
//        "isCancelled": false,
//        "isOrganizer": true,
//        "responseRequested": true,
//        "seriesMasterId": null,
//        "showAs": "busy",
//        "type": "singleInstance",
//        "webLink": "https://outlook.live.com/owa/?itemid=AQMkADAwATM0MDAAMS1iNTcwLWI2NT ... gkal8pdj0AApRZ7JkAAAA%3D&exvsurl=1&path=/calendar/item",
//        "onlineMeetingUrl": null,
//        "recurrence": null,
//        "responseStatus": {
//          "response": "organizer",
//          "time": "0001-01-01T00:00:00Z"
//        },
//        "body": {
//          "contentType": "html",
//          "content": "<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\r\n<meta content=\"text/html; charset=us-ascii\">\r\n</head>\r\n<body>\r\nDoes mid month work for you?\r\n</body>\r\n</html>\r\n"
//        },
//        "start": {
//          "dateTime": "2019-11-15T20:00:00.0000000",
//          "timeZone": "UTC"
//        },
//        "end": {
//          "dateTime": "2019-11-15T22:00:00.0000000",
//          "timeZone": "UTC"
//        },
//        "location": {
//          "displayName": "Harry's Bar",
//          "locationType": "default",
//          "uniqueId": "Harry's Bar",
//          "uniqueIdType": "private"
//        },
//        "locations": [
//          {
//            "displayName": "Harry's Bar",
//            "locationType": "default",
//            "uniqueId": "Harry's Bar",
//            "uniqueIdType": "private"
//          }
//        ],
//        "attendees": [
//          {
//            "type": "required",
//            "status": {
//              "response": "none",
//              "time": "0001-01-01T00:00:00Z"
//            },
//            "emailAddress": {
//              "name": "Adele Vance",
//              "address": "adelev@contoso.onmicrosoft.com"
//            }
//          }
//        ],
//        "organizer": {
//          "emailAddress": {
//            "name": "Matt",
//            "address": "outlook_3A33FCEB9B74CC15@outlook.com"
//          }
//        }
//      }
//    ]
//  }

//  Use this online tool to generate parsing code from sample JSON: 
//  Generate Parsing Code from JSON

string odataContext;
int i;
int count_i;
string odataEtag;
string id;
string createdDateTime;
string lastModifiedDateTime;
string changeKey;
string originalStartTimeZone;
string originalEndTimeZone;
string iCalUId;
int reminderMinutesBeforeStart;
bool isReminderOn;
bool hasAttachments;
string subject;
string bodyPreview;
string importance;
string sensitivity;
bool isAllDay;
bool isCancelled;
bool isOrganizer;
bool responseRequested;
string seriesMasterId;
string showAs;
string v_type;
string webLink;
string onlineMeetingUrl;
string recurrence;
string responseStatusResponse;
string responseStatusTime;
string bodyContentType;
string bodyContent;
string startDateTime;
string startTimeZone;
string endDateTime;
string endTimeZone;
string locationDisplayName;
string locationLocationType;
string locationUniqueId;
string locationUniqueIdType;
string organizerEmailAddressName;
string organizerEmailAddressAddress;
int j;
int count_j;
string displayName;
string locationType;
string uniqueId;
string uniqueIdType;
string statusResponse;
string statusTime;
string emailAddressName;
string emailAddressAddress;

odataContext = json.StringOf("\"@odata.context\"");
i = 0;
count_i = json.SizeOfArray("value");
while (i < count_i) {
    json.I = i;
    odataEtag = json.StringOf("value[i].\"@odata.etag\"");
    id = json.StringOf("value[i].id");
    createdDateTime = json.StringOf("value[i].createdDateTime");
    lastModifiedDateTime = json.StringOf("value[i].lastModifiedDateTime");
    changeKey = json.StringOf("value[i].changeKey");
    originalStartTimeZone = json.StringOf("value[i].originalStartTimeZone");
    originalEndTimeZone = json.StringOf("value[i].originalEndTimeZone");
    iCalUId = json.StringOf("value[i].iCalUId");
    reminderMinutesBeforeStart = json.IntOf("value[i].reminderMinutesBeforeStart");
    isReminderOn = json.BoolOf("value[i].isReminderOn");
    hasAttachments = json.BoolOf("value[i].hasAttachments");
    subject = json.StringOf("value[i].subject");
    bodyPreview = json.StringOf("value[i].bodyPreview");
    importance = json.StringOf("value[i].importance");
    sensitivity = json.StringOf("value[i].sensitivity");
    isAllDay = json.BoolOf("value[i].isAllDay");
    isCancelled = json.BoolOf("value[i].isCancelled");
    isOrganizer = json.BoolOf("value[i].isOrganizer");
    responseRequested = json.BoolOf("value[i].responseRequested");
    seriesMasterId = json.StringOf("value[i].seriesMasterId");
    showAs = json.StringOf("value[i].showAs");
    v_type = json.StringOf("value[i].type");
    webLink = json.StringOf("value[i].webLink");
    onlineMeetingUrl = json.StringOf("value[i].onlineMeetingUrl");
    recurrence = json.StringOf("value[i].recurrence");
    responseStatusResponse = json.StringOf("value[i].responseStatus.response");
    responseStatusTime = json.StringOf("value[i].responseStatus.time");
    bodyContentType = json.StringOf("value[i].body.contentType");
    bodyContent = json.StringOf("value[i].body.content");
    startDateTime = json.StringOf("value[i].start.dateTime");
    startTimeZone = json.StringOf("value[i].start.timeZone");
    endDateTime = json.StringOf("value[i].end.dateTime");
    endTimeZone = json.StringOf("value[i].end.timeZone");
    locationDisplayName = json.StringOf("value[i].location.displayName");
    locationLocationType = json.StringOf("value[i].location.locationType");
    locationUniqueId = json.StringOf("value[i].location.uniqueId");
    locationUniqueIdType = json.StringOf("value[i].location.uniqueIdType");
    organizerEmailAddressName = json.StringOf("value[i].organizer.emailAddress.name");
    organizerEmailAddressAddress = json.StringOf("value[i].organizer.emailAddress.address");
    j = 0;
    count_j = json.SizeOfArray("value[i].categories");
    while (j < count_j) {
        json.J = j;
        //  ...
        j = j + 1;
    }

    j = 0;
    count_j = json.SizeOfArray("value[i].locations");
    while (j < count_j) {
        json.J = j;
        displayName = json.StringOf("value[i].locations[j].displayName");
        locationType = json.StringOf("value[i].locations[j].locationType");
        uniqueId = json.StringOf("value[i].locations[j].uniqueId");
        uniqueIdType = json.StringOf("value[i].locations[j].uniqueIdType");
        j = j + 1;
    }

    j = 0;
    count_j = json.SizeOfArray("value[i].attendees");
    while (j < count_j) {
        json.J = j;
        v_type = json.StringOf("value[i].attendees[j].type");
        statusResponse = json.StringOf("value[i].attendees[j].status.response");
        statusTime = json.StringOf("value[i].attendees[j].status.time");
        emailAddressName = json.StringOf("value[i].attendees[j].emailAddress.name");
        emailAddressAddress = json.StringOf("value[i].attendees[j].emailAddress.address");
        j = j + 1;
    }

    i = i + 1;
}

Debug.WriteLine("Success.");