{

private static readonly HashSet<Type> BaseTypes = new HashSet<Type>

{

typeof (bool),

typeof (char),

typeof (sbyte),

typeof (byte),

typeof (short),

typeof (ushort),

typeof (int),

typeof (uint),

typeof (long),

typeof (ulong),

typeof (float),

typeof (double),

typeof (decimal),

typeof (DateTime),

typeof (string),

typeof (byte[]),

typeof (Guid),

};

public static bool IsKnownType(Type type)

{

return BaseTypes.Contains(type);

}