// Create a .ics file for calendar events from a date range.
public ActionResult ExportEventsToIcal(DateTime start, DateTime end)
{
// Check if dates are null before doing anything.
if (start == null || end == null)
{
return(SiteErrorHandler.GetBadRequestActionResult("<strong>Error:</strong> No date range provided.", ""));
}
// Get user's calendar entries within the date range.
List <CalEntry> userEntries = _scheduleRepository.GetAllUserEntries(User.Identity.GetUserId(), start, end);
// Check if there are any diary entries to sync.
if (userEntries == null)
{
return(SiteErrorHandler.GetBadRequestActionResult("<strong>Error:</strong> No calendar events to sync.", ""));
}
// Create iCal.
var iCal = new Ical.Net.Calendar()
{
ProductId = "ASP.Net Diary Scheduler",
Version = "2.0"
};
// Create a new event for each calendar entry.
foreach (CalEntry entry in userEntries)
{
// Create event.
var evt = iCal.Create <Ical.Net.CalendarComponents.CalendarEvent>();
// Prepare ical event.
evt.Uid = entry.CalendarEntryId.ToString();
evt.Start = new Ical.Net.DataTypes.CalDateTime(entry.DateFrom);
evt.End = new Ical.Net.DataTypes.CalDateTime(entry.DateTo);
evt.Description = entry.Description;
evt.Summary = entry.Title;
evt.IsAllDay = entry.AllDay;
}
// Build the .ics file.
Ical.Net.Serialization.SerializationContext ctx = new Ical.Net.Serialization.SerializationContext();
var serialiser = new Ical.Net.Serialization.CalendarSerializer(ctx);
string output = serialiser.SerializeToString(iCal);
string contentType = "text/calendar";
var bytes = System.Text.Encoding.UTF8.GetBytes(output);
// Create a name.
Guid fileId = Guid.NewGuid();
string fileName = fileId.ToString() + ".ics";
return(File(bytes, contentType, fileName));
}
// Create a .ics file for a calendar event.
public ActionResult ExportEventToIcal(Guid id)
{
// Check if an id was sent.
if (id == Guid.Empty)
{
return(SiteErrorHandler.GetBadRequestActionResult("<strong>Error:</strong> Invalid calendar event id.", ""));
}
var entry = _scheduleRepository.GetCalendarEntry(id);
if (entry == null)
{
return(SiteErrorHandler.GetBadRequestActionResult("<strong>Error:</strong> The calendar event could not be found.", ""));
}
// Create iCal.
var iCal = new Ical.Net.Calendar()
{
ProductId = "ASP.Net Diary Scheduler",
Version = "2.0"
};
// Create event.
var evt = iCal.Create <Ical.Net.CalendarComponents.CalendarEvent>();
// Prepare ical event.
evt.Uid = entry.CalendarEntryId.ToString();
evt.Start = new Ical.Net.DataTypes.CalDateTime(entry.DateFrom);
evt.End = new Ical.Net.DataTypes.CalDateTime(entry.DateTo);
evt.Description = entry.Description;
evt.Summary = entry.Title;
evt.IsAllDay = entry.AllDay;
// Build the .ics file.
var ctx = new Ical.Net.Serialization.SerializationContext();
var serialiser = new Ical.Net.Serialization.CalendarSerializer(ctx);
string output = serialiser.SerializeToString(iCal);
string contentType = "text/calendar";
var bytes = System.Text.Encoding.UTF8.GetBytes(output);
// Create a name.
Guid fileId = Guid.NewGuid();
string fileName = fileId.ToString() + ".ics";
return(File(bytes, contentType, fileName));
}
/// <summary>
/// Create the <see cref="CalendarIcalViewModel"/> using the <see cref="Ical.Net.Calendar"/>.
/// </summary>
/// <param name="iCal">The calendar to generate an ics from.</param>
/// <returns>THe <see cref="CalendarIcalViewModel"/> holding the ics data.</returns>
private CalendarIcalViewModel CreateCalendarIcalViewModelFromIcal(Ical.Net.Calendar iCal)
{
var fileData = new CalendarIcalViewModel();
Ical.Net.Serialization.SerializationContext ctx = new Ical.Net.Serialization.SerializationContext();
var serialiser = new Ical.Net.Serialization.CalendarSerializer(ctx);
string output = serialiser.SerializeToString(iCal);
fileData.ContentType = "text/calendar";
fileData.Data = System.Text.Encoding.UTF8.GetBytes(output);
// Create a name.
Guid fileId = Guid.NewGuid();
fileData.FileName = fileId.ToString() + ".ics";
return(fileData);
}