/// <summary>
/// Reads the next value as an Enumerated with tag UNIVERSAL 10, converting it to the
/// non-[<see cref="FlagsAttribute"/>] enum specfied by <paramref name="tEnum"/>.
/// </summary>
/// <param name="expectedTag">The tag to check for before reading.</param>
/// <param name="tEnum">Type object representing the destination type.</param>
/// <returns>
/// the Enumerated value converted to a <paramref name="tEnum"/>.
/// </returns>
/// <remarks>
/// This method does not validate that the return value is defined within
/// <paramref name="tEnum"/>.
/// </remarks>
/// <exception cref="CryptographicException">
/// the next value does not have the correct tag --OR--
/// the length encoding is not valid under the current encoding rules --OR--
/// the contents are not valid under the current encoding rules --OR--
/// the encoded value is too big to fit in a <paramref name="tEnum"/> value
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="tEnum"/> is not an enum type --OR--
/// <paramref name="tEnum"/> was declared with <see cref="FlagsAttribute"/>
/// --OR--
/// <paramref name="tEnum"/>.<see cref="Asn1Tag.TagClass"/> is
/// <see cref="TagClass.Universal"/>, but
/// <paramref name="tEnum"/>.<see cref="Asn1Tag.TagValue"/> is not correct for
/// the method
/// </exception>
public Enum ReadEnumeratedValue(Asn1Tag expectedTag, Type tEnum)
{
AsnValueReader valueReader = OpenValueReader();
Enum ret = valueReader.ReadEnumeratedValue(expectedTag, tEnum);
valueReader.MatchSlice(ref _data);
return(ret);
}