[Mono-list] CultureInfo.InvariantCulture.Clone()

[Fredrik Ålund]

I have problems getting my application that is developed for .NET
Framework 1.1 to work with Mono. The problem is that
CultureInfo.InvariantCulture.Clone() gives me a clone where NumberFormat
and DateTimeFormat is read only. This is not the case on Microsoft .NET
Framework 1.1. An example that tests for read-only follows. On MS .NET
Framework 1.1 both the NumberFormat and DataTimeFormat are read-write but
on Mono they are read-only.

using System;
using System.Globalization;

namespace CloneTest
{
	class CloneTest
	{

		[STAThread]
		static void Main(string[] args)
		{
			CultureInfo myCultureInfo = (CultureInfo)
CultureInfo.InvariantCulture.Clone();
			if(myCultureInfo.IsReadOnly)
			{
				Console.WriteLine("Wrong: Culture Read-Only");
			}
			else
			{
				Console.WriteLine("Ok: Culture Read-Write");
			}
			
			//DateTimeFormat
			if(myCultureInfo.DateTimeFormat.IsReadOnly)
			{
				Console.WriteLine("Wrong: myCultureInfo.DataTimeFormat is read-only");
			}
			else
			{
				Console.WriteLine("Ok: myCultureInfo.DataTimeFormat is read-write");
			}

			//NumberFormat
			if(myCultureInfo.NumberFormat.IsReadOnly)
			{
				Console.WriteLine("Wrong: myCultureInfo.NumberFormat is read-only");
			}
			else
			{
				Console.WriteLine("Ok: myCultureInfo.NumberFormat is read-write");
			}

			//Throws an exception on Mono saying that myCultureInfo is read-only.
			//myCultureInfo.DateTimeFormat.ShortDatePattern = "yyyy-MM-dd";
			//The following sequence work on Mono
			myCultureInfo.DateTimeFormat= new DateTimeFormatInfo();
			myCultureInfo.DateTimeFormat.ShortDatePattern = "yyyy-MM-dd";

		}
	}
}

Am I missing something or is this an error in Mono, or is it an error in 
MS .NET Framework 1.1?

Regards,
Fredrik