MeetingRequest

A small library for creating and formatting iCalendar (RFC 5545 / RFC 2445) calendar objects (events, alarms, attendees, organizers, etc.).

Features

• Build iCalendar objects (VCALENDAR, VEVENT, VALARM...)
• Escape and format values for iCalendar compatibility
• Support for timezone-aware date/time using DateTimeOffset

Supported targets

This repository contains projects targeting multiple frameworks. The library is compatible with:

• .NET Standard 2.0
• .NET Standard 2.1
• .NET 6
• .NET 8
• .NET 10

Building

Prerequisites: installed .NET SDK (recommended: .NET 8).

To restore and build:

dotnet restore
dotnet build -c Release

To create NuGet packages:

dotnet pack -c Release -o ./artifacts

Usage

Use the library to construct calendar objects and get the iCalendar text or stream:

var calendar = new MeetingRequest.Calendar
{
    ProdID = "MyCompany//MyApp//EN",
    Version = "2.0",
    CalendarMethod = MeetingRequest.CalendarMethod.REQUEST
};

// add events/attendees/alarms...
string icalText = calendar.GetCalendarContentText();
using var stream = calendar.GetCalendarContentStream();

Notes & Recommendations

• Date/time fields use DateTimeOffset to preserve timezone/offset information.
• Strings are escaped for iCalendar compliance by the library, but callers should validate required fields (e.g. UID, Email).
• Consider adding unit tests and enabling nullable reference types for improved safety.

License

This project is licensed under the MIT License. See the LICENSE file for details.