IReadOnlyDictionary<TKey, TValue>.Keys Property
Gets an enumerable collection that contains the keys in the read-only dictionary.
Assembly: mscorlib (in mscorlib.dll)
The order of the keys in the enumerable collection is unspecified, but the implementation must guarantee that the keys are in the same order as the corresponding values in the enumerable collection that is returned by the Values property.
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.