An Empty Scheduler Error

datePattern is a property of DayPilot.Locale. You might want to check the locale value - it must be either a DayPilot.Locale object or a string identifier of a registered locale.

You are absolutely right.

However, in international apps there is the possibility of have just say en as opposed to en-us or en-gb.

Is there any way of registering additional locales?

Thanks

Can we for example say to register that en=en-gb etc.

You can register an alias like this:

DayPilot.Locale.register("en", DayPilot.Locale.find("en-gb"));

You can also create and register your own locale:

DayPilot.Locale.register(
  new DayPilot.Locale("en-gb", {
    dayNames: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
    dayNamesShort: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"],
    monthNames: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
    monthNamesShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
    timePattern: "HH:mm",
    datePattern: "dd/MM/yyyy",
    dateTimePattern: "dd/MM/yyyy HH:mm",
    timeFormat: "Clock24Hours",
    weekStarts: 1
  })
);

We tried:
DayPilot.Locale.register("en", DayPilot.Locale.find("en-us"));

But it does not work and still gives us the same error.

We really would appreciate a solution to this.

The locale is so important in your library that it simply breaks EVERYTHING if not formatted correctly and there are numerouse situations where only the language is specified without the region.

The code which you sent us earlier seems to be ideal but unfortunately does not work:
DayPilot.Locale.register("en", DayPilot.Locale.find("en-gb"));

Thanks in advance for your assistance.

Sorry, the alias registration syntax used above is incorrect. It is necessary to copy the locale properties like this:

DayPilot.Locale.register(new DayPilot.Locale(null, {
    ...DayPilot.Locale.find("en-us"),
    id: "en",
}));