Extension methods

Extension methods which extend Sitefinity CMS type "Calendar“ with helper methods.

• GetEvents() – gets all events in a certain calendar ```C# using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  using Telerik.Sitefinity.Modules.Events;
  using Telerik.Sitefinity.Events.Model;

  namespace Telerik.Sitefinity.Documentation.CodeSnippets.DevGuide.SitefinityEssentials.Modules.Events.Calendars
  {
  public partial class CalendarSnippets
  {
  public static IQueryable GetEventsViaExtensions()
  {
  Guid calendarId = Guid.NewGuid();
  var manager = EventsManager.GetManager();
  var calendarItem = manager.CreateCalendar(calendarId);
  calendarItem.Title = "Calendar item 1";
  calendarItem.UrlName = "calendar-item-1";
  manager.SaveChanges();

            var existingCalendarItem = manager.GetCalendar(calendarId);  
            var events = existingCalendarItem.GetEvents();  
            return events;  
        }  
    }  

  }

  In the example above we are creating a Calendar via the **CreateCalendar**  method of EventsManager. See [For developers: Calendars](slug://for-developers-calendars) article for more information. Then we are getting the created calendar item and retrieving all events that are related to it via the **GetEvents**   method.

• GetOccurrences() – gets all occurrences of an event ```C# using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  using Telerik.Sitefinity.Modules.Events;
  using Telerik.Sitefinity.Events.Model;

  namespace Telerik.Sitefinity.Documentation.CodeSnippets.DevGuide.SitefinityEssentials.Modules.Events.Calendars
  {
  public partial class CalendarSnippets
  {
  public static IEnumerable GetOccurences()
  {
  var timeNow = DateTime.UtcNow;
  var manager = EventsManager.GetManager();

            var e1Id = Guid.NewGuid();  
            var e1Title = "TestEvent1";  
            var e1Descr = "TestEvent1 description";  
            var e1Content = "TestEvent1 content";  
            var e1StartDate = timeNow;  
            var e1EndDate = timeNow.AddDays(5);  
            var e1Location = "Test location";  
            var e1 = manager.CreateEvent(e1Id);  
            e1.Title = e1Title;  
            e1.Description = e1Descr;  
            e1.Content = e1Content;  
            e1.EventStart = e1StartDate;  
            e1.EventEnd = e1EndDate;  
            e1.IsRecurrent = false;  
            e1.Location = e1Location;  
  
            manager.Lifecycle.Publish(e1);  
            manager.SaveChanges();  
  
            e1 = manager.GetEvent(e1Id);  
  
            var occurrences = e1.GetOccurrences();  
            return occurrences;  
        }  
    }  

  }

  This example creates new event with specified *Title*, *Description*, *Content*, *EventStart*, *EventEnd*, *Location* and *IsRecurrent* properties. If the event is recurrent (*IsRecurrent*property is set to "**true**  ') - you can get all the occurrences via the **GetOccurrences**   method.

• GetOccurrences(this Event eventItem, DateTime? dateTime, DateTime? endDate )– gets all occurrences of an event for the specified period of time ```C# using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Telerik.Sitefinity.Modules.Events; using Telerik.Sitefinity.Events.Model;

  namespace Telerik.Sitefinity.Documentation.CodeSnippets.DevGuide.SitefinityEssentials.Modules.Events.Calendars { public partial class CalendarSnippets { public static IEnumerable GetOccurrencesForTimePeriod() { var timeNow = DateTime.UtcNow; var manager = EventsManager.GetManager();

            var e1Id = Guid.NewGuid();
            var e1Title = "TestEvent1";
            var e1Descr = "TestEvent1 description";
            var e1Content = "TestEvent1 content";
            var e1StartDate = timeNow;
            var e1EndDate = timeNow.AddDays(5);
            var e1Location = "Test location";
            var e1 = manager.CreateEvent(e1Id);
            e1.Title = e1Title;
            e1.Description = e1Descr;
            e1.Content = e1Content;
            e1.EventStart = e1StartDate;
            e1.EventEnd = e1EndDate;
            e1.IsRecurrent = false;
            e1.Location = e1Location;
  
            manager.Lifecycle.Publish(e1);
            manager.SaveChanges();
  
            e1 = manager.GetEvent(e1Id);
  
            var occurrences = e1.GetOccurrences(e1StartDate, null);
            return occurrences;
        }
    }

  }

This is another overload of the GetOccurrences method where you can specify the start and end interval in which you'll find all of the occurrences per event.