peSHIr.iCalendar 1.0.0

Prefix Reserved

dotnet add package peSHIr.iCalendar --version 1.0.0

NuGet\Install-Package peSHIr.iCalendar -Version 1.0.0

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="peSHIr.iCalendar" Version="1.0.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="peSHIr.iCalendar" Version="1.0.0" />
                    

                            Directory.Packages.props

<PackageReference Include="peSHIr.iCalendar" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add peSHIr.iCalendar --version 1.0.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: peSHIr.iCalendar, 1.0.0"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package peSHIr.iCalendar@1.0.0

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=peSHIr.iCalendar&version=1.0.0
                    

                            Install as a Cake Addin

#tool nuget:?package=peSHIr.iCalendar&version=1.0.0
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

About

What's this?

This library is a simple wrapper around Ical.Net that I have used to generate certain iCalendar content for some years.

As it is meant to be used for generating some sort of work schedules - including things like vacation periods, that can contain overlaps - the most useful extra logic would be the MergeMultipleAllDayEvents() method, that can merge a number of overlapping full day events. A very specific case I have used this for would be Merge_IsVrĳ_instances() that does this for a number of Dutch description title vacation periods. Make of this what you will, or simply do not use this package at all. 😉

Who created this?

My name is Jarno Peschier. I started programming on a Commodore 64 in high school, got a masters degree in Computer Science at Utrecht University near the end of the 20th century, specializing in GIS algorithms, and I have been developing software all my professional life.

In 2025 I started publishing some NuGet packages while working as a software engineer at Dutch engineering firm Iv, where I personally handled all software development around our scan vehicle (YouTube) using multiple third party software packages, C#, and PowerShell.

You might also know me by my online name of peSHIr, which is basically the way you write my last name phonetically in Klingon.

How do I use it?

Should you, really? Or would you use Ical.Net yourself with your own logic directly?

If you decide you do want to use this specific tangle of code, you could do something like this perhaps:

using peSHIr.Web.iCalendar;
//...
var cal = new CalendarEvents("Star Wars")
cal.AddGeneratedEvent("Updated", "This example content was generated at this time.", false);
cal.AddAllDay("May the Fourth", new DateTime(2026,5,4), "Star Wars");
string rfc5545 = cal.SerializeToString();

Credits

This library wouldn't have been possible without the following:

Ical.Net - General purpose iCalendar NuGet package for RFC 5545 compliance
NodaTime - General purpose date/time NuGet package by Jon Skeet et al., as used by Ical.Net
xUnit - Community-focused unit testing tool for .NET by Brad Wilson
FluentAssertions - Support library for using fluent unit test assertions by Dennis Doomen
Polysharp - Generated, source-only polyfills for C# language features by Sergio Pedri
peSHIr.Core - Hey, that sounds familiar...? It's by this guy 😉

Product	Compatible and additional computed target framework versions.
.NET	net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.
.NET Framework	net472 is compatible. net48 was computed. net481 was computed.