I am trying to migrate SharePoint calendar from 2007 to 2013 programatically.

Here is my code.

using (ClientContext clientcontext = new ClientContext(targetURL))
    clientcontext.Credentials = onlineCredentials;
    Web web = clientcontext.Web;
    Site site = clientcontext.Site;

    ListCreationInformation Listcreate = new ListCreationInformation();
    Listcreate.Title = "Calendar123";
    Listcreate.Description = "this is my test calendar";
    Listcreate.TemplateType = (int)ListTemplateType.Events;
    List oList = web.Lists.Add(Listcreate);

    List list = clientcontext.Web.Lists.GetByTitle("Calendar123");
    ListItemCreationInformation Listitemcreate = new ListItemCreationInformation();
    ListItem item = list.AddItem(Listitemcreate);

    item["Title"] = "StandUP Call";
    item["Description"] = "StandUp call will be hold in Meeting discussion room no. 3";
    item["Location"] = "First Floor";
    item["EventDate"] = DateTime.Now; //Start Time
    item["EndDate"] = DateTime.Now.AddDays(3);
    item["Category"] = "Business";
    item["fAllDayEvent"] = true;
    item["fRecurrence"] = 1;



It creates an event in calendar but item["fRecurrence"] = 1 is not working properly and getting below error.


Because to work properly it also needs RecurrenceData and I don't know how to insert that using program.

1 Answer 1


You can refer this URL for RecurrenceData schema and write a C# function to generate the schema based on parameters like

  1. RecurrenceType Enum { Hourly, Daily, Monthly, Yearly}
  2. FirstDayOfWeek Enum {Su, Mon, Tue, Web, Thu, Fri, Sat}
  3. Frequency Integer
  4. WindowEnd DateTime
  5. RepeatForever Boolean
  6. RepeatInstances Integer

And set it to the RecurrenceData field of the ListItem or you can set a static XML value to it like this:

    string recData = "<recurrence><rule><firstDayOfWeek>su</firstDayOfWeek><repeat><daily dayFrequency=\"1\" /></repeat><windowEnd>2012-02-26T01:00:00Z</windowEnd></rule></recurrence>";
    item["RecurrenceData"] = recData;

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