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Mono 4.0.1 Fails on this:
"DateTime.TryParseExact ("01/08/16", "dd/MM/yy", null, DateTimeStyles.None, out dt))"
where as this works fine.
"DateTime.TryParseExact ("01-08-16", "dd-MM-yy", null, DateTimeStyles.None, out dt))"
It all worked in Mono 3.12
If you run this with LC_ALL=en_US it works, but it fails with e.g. LC_ALL=de_DE.
The reason is you pass null for the "provider" parameter, which means according to MSDN:
> If provider is null, the CultureInfo object that corresponds to the current culture is used.
It's not a bug, just pass CultureInfo.InvariantCulture instead of null and your code should work fine.
Was a different between Mono and .NET and since Mono now uses .NET source code it failed.