How to add Language to Description and others

[divinebovine]

RFC 5545, section 3.2.10 states that we can specify language on text values in a property or property parameter. How do we do this?

[axunonb]

Example:

var evt = new CalendarEvent
{
    // Don't use the property...
    // Summary = "Summary",
    Start = new CalDateTime(2025, 7, 14),
    End = new CalDateTime(2025, 7, 15)
};
// ... but create a custom SUMMARY property which includes the LANGUAGE parameter
var summary = new CalendarProperty("SUMMARY", "Réunion du comité");
summary.AddParameter("LANGUAGE", "fr-CA"); // RFC 5646/BCP 47 language tag
evt.AddProperty(summary);

// ... serialize the calendar
// => SUMMARY;LANGUAGE=fr-CA:Réunion du comité

[divinebovine]

Thank you!