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Summary = New (DirectCast(Item("Summary"), String))
End = New (DirectCast(Item("End"), Date)) Start = New (DirectCast(Item("Start"), Date)) (1) Dim MyEvent As = M圜al.Create(Of )()Īnd directly following this line in the 'With MyEvent' block In the VB.Net Example1 solution included in the download, the following lines in the btnMakeICS_Click event are showing as errors. It's helping me to better understand (and hopefully use) the iCal format.
Thanks for posting this article and code.
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'Service provided by Telerik ('Conversion powered by NRefactory.ĭoes this work with VS2012 and windows phone 8? Occurrences = calendars.GetOccurrences((1), (7))Ĭonsole.WriteLine(Environment.NewLine + "Upcoming Events: " )Ĭonsole.WriteLine(rc.Summary + ": " + occurrenceTime.ToString()) ' Get all occurrences for the next 7 days, starting tomorrow. ' Iterate through each occurrence and display information about itįor Each occurrence As Occurrence In occurrencesĭim occurrenceTime As DateTime = ĭim rc As IRecurringComponent = Tr圜ast(occurrence.Source, IRecurringComponent)Ĭonsole.WriteLine(rc.Summary + ": " + occurrenceTime.ToShortTimeString()) Private Shared Sub Main(args As String())ĭim calendars As IICalendarCollection = iCalendar.LoadFromFile( " Business.ics")ĭim occurrences As IList(Of Occurrence) = calendars.GetOccurrences(DateTime.Today, (1)) I'll now be providing more frequent updates.
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Many apologies that it's taken so long to update this article. Start with tomorrow foreach (Occurrence occurrence in occurrences)Ĭonsole.WriteLine(rc.Summary + " : " + occurrenceTime.ToString()) įor more information, visit the DDay.iCal homepage at. (( 1), ( 7)) Ĭonsole.WriteLine(Environment.NewLine + " Upcoming Events:") // Get all occurrences for the next 7 days, starting tomorrow. IICalendarCollection calendars = iCalendar.LoadFromFile( Business.ics") Required DDay.iCal namespace using DDay.iCal Let's display all of the upcoming events that will occur within the next 7 days: So, now we've displayed all the events that occur today.
We cast the Source of the occurrence to an IRecurringComponent, and display its properties. Occurrence objects describe each occurrence, including the date/time the occurrence happens, and a reference to the original component that generated the occurrence. That's it! To be clear, calendars.GetOccurrences(.) returns a list of Occurrence objects. IRecurringComponent rc = occurrence.Source as IRecurringComponent Ĭonsole.WriteLine(rc.Summary + " : " + occurrenceTime.ToShortTimeString()) Iterate through each occurrence and display information about it foreach (Occurrence occurrence in occurrences)ĭateTime occurrenceTime = IList&occurrence> occurrences = calendars.GetOccurrences
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Then, add the following to the top of the Program.cs file:Ĭopy Code // // Get all events that occur today. click "Add Reference" from the "Project" menu). Once you've done that, you simply need to add a reference to from your project (i.e.
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Then, if you haven't already done so, download the latest binary version of DDay.iCal from. To begin, open Visual Studio and create a "Windows Console Application" project. If you didn't already know - iCalendar is a W3C recommendation known as RFC 5545. These are some of the problems the iCalendar standard solves for us. What if you want to allow for recurrences in your calendar, so an event can recur "every 2 nd-to-last Sunday of the month?" What if you want to publish your calendar, so others can subscribe to it, and view it from the calendar program they prefer? What if you want to display and manipulate calendars from multiple sources, including sources that you may not have control over? So, if you needed to accomplish anything else with the calendar that your original application didn't support, you'd have to write it by hand.Īlso, these ad-hoc calendars are only viewable from the application that wrote them. So, what's the problem with that? The historical answer is that no (or very few) programmers followed any kind of standard to implement their calendars. So, thousands of programmers, all adding calendar support to their applications. Many programmers have worked with adding some kind of calendar support to an application - from displaying upcoming events on a web site, to allowing personalized calendars, with the ability to alter them.
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I've also included an example project that demonstrates how to add this kind of support to an ASP.NET web application. In this article, I will walk you through creating a console application that will load and display upcoming events to the user. I will cover more advanced topics, such as creating, editing, and serializing iCalendars in my next article. This article describes how to load and view iCalendars by using the DDay.iCal library.
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