Inheritance diagram for Asn1Null:

Public Member Functions
override void	Decode (Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)

override void	Decode (Asn1PerDecodeBuffer buffer)

override void	Decode (Asn1OerDecodeBuffer buffer)

virtual void	Decode (Asn1JsonDecodeBuffer buffer)

virtual void	DecodeXER (System.String buffer, System.String attrs)

override void	DecodeXML (System.String buffer, System.String attrs)

override int	Encode (Asn1BerEncodeBuffer buffer, bool explicitTagging)

override void	Encode (Asn1PerEncodeBuffer buffer)

override void	Encode (Asn1OerEncodeBuffer buffer)

override void	Encode (Asn1XerEncoder buffer, System.String elemName)

override void	Encode (Asn1XmlEncoder buffer, System.String elemName, System.String nsPrefix)

virtual void	Encode (Asn1JsonOutputStream outstream)

override void	Encode (Asn1BerOutputStream outs, bool explicitTagging)

override void	Encode (Asn1PerOutputStream outs)

override bool	Equals (object o)

override System.String	ToString ()

Public Member Functions inherited from Asn1Type
void	_SetKey (byte[] rtkey)

virtual void	Decode (Asn1BerDecodeBuffer buffer)

virtual void	Decode (System.Object reader, System.String xmlURI)

virtual void	Decode (System.Object reader, System.IO.Stream byteStream)

virtual void	Decode (Asn1MderDecodeBuffer buffer)

virtual void	DecodeXML (String buffer, String attrs)

virtual int	Encode (Asn1BerEncodeBuffer buffer)

virtual void	Encode (Asn1XerEncoder buffer)

virtual void	Encode (Asn1XmlEncoder buffer)

virtual void	Encode (Asn1MderOutputStream buffer)

virtual void	Encode (Asn1MderOutputStream buffer, bool useCachedLength)

virtual void	Encode (Asn1CerOutputStream outs, bool explicitTagging)

void	EncodeAsOpenType (Asn1OerEncodeBuffer buffer)

virtual void	EncodeAttribute (Asn1XmlEncoder buffer, System.String attrName)

virtual bool	Equals (Asn1Type obj)

String	GetNonParameterizedTypeName ()

virtual void	Indent (System.IO.TextWriter outs, int level)

virtual bool	IsOpenType ()

virtual bool	MatchTypeName (System.String typeName)

virtual void	Pdiag (System.String s)

virtual void	Print (System.IO.TextWriter outs, System.String varName, int level)

virtual void	Print (System.String varName)

void	SetNonParameterizedTypeName (String value)

virtual void	SetOpenType ()

Static Public Attributes
static new readonly Asn1Tag	_TAG

static readonly Asn1Null	NULL_VALUE = new Asn1Null()

Static Public Attributes inherited from Asn1Type
static readonly Asn1Tag	_TAG

Additional Inherited Members
Static Public Member Functions inherited from Asn1Type
static void	_SetKey2 (byte[] rtkey)

static Asn1Type	Decode (Asn1BerDecodeBuffer buffer, Asn1OpenTypeField openTypeField, bool explicitTag, int implicitLength)

static Asn1Type	Decode (Asn1OerDecodeBuffer buffer, Asn1OpenTypeField openTypeField)

static Asn1Type	Decode (Asn1PerDecodeBuffer buffer, Asn1OpenTypeField openTypeField)

static System.String	GetTypeName (short typeCode)

Public Attributes inherited from Asn1Type
const short	BIT_STRING = 3

const short	BMPString = 30

const short	BOOLEAN = 1

const short	DATE = 31

const short	ENUMERATED = 10

const short	EOC = 0

const short	EXTERNAL = 8

const short	GeneralString = 27

const short	GeneralTime = 24

const short	GraphicString = 25

const short	IA5String = 22

const short	INTEGER = 2

const short	NULL = 5

const short	NumericString = 18

const short	OBJECT_IDENTIFIER = 6

const short	ObjectDescriptor = 7

const short	OCTET_STRING = 4

const short	OpenType = 99

const short	PrintableString = 19

const short	REAL = 9

const short	RELATIVE_OID_IRI = 36

const short	RelativeOID = 13

const short	SEQUENCE = 16

const short	SET = 17

const short	T61String = TeletexString

const short	TeletexString = 20

const short	TIME = 14

const short	UniversalString = 28

const short	UTCTime = 23

const short	UTF8String = 12

const short	VideotexString = 21

const short	VisibleString = 26

Properties inherited from Asn1Type
virtual String	AsnTypeName `[get]`

virtual int	Length `[get]`

Detailed Description

This class represents the ASN.1 NULL built-in type.

Member Function Documentation

◆ Decode() [1/4]

override void Decode	(	Asn1BerDecodeBuffer	buffer,
		bool	explicitTagging,
		int	implicitLength
	)

virtual

This method decodes an ASN.1 null value including the UNIVERSAL tag value and length if explicit tagging is specified. This overloaded version uses the Basic Encoding Rules (BER).

Parameters

buffer	Decode message buffer object
explicitTagging	Flag indicating element is explicitly tagged
implicitLength	Length of contents if implicit

Reimplemented from Asn1Type.

◆ Decode() [2/4]

override void Decode ( Asn1PerDecodeBuffer buffer )

virtual

This method decodes an ASN.1 null value in accordance with the Packed Encoding Rules (PER).

Parameters

buffer Decode message buffer object

Reimplemented from Asn1Type.

◆ Decode() [3/4]

override void Decode ( Asn1OerDecodeBuffer buffer )

virtual

Decode ASN.1 NULL type, using Octet Encoding Rules (OER).

Reimplemented from Asn1Type.

References Asn1Type.NULL, and Asn1MessageBufferBase.TypeCode.

◆ Decode() [4/4]

virtual void Decode ( Asn1JsonDecodeBuffer buffer )

virtual

Decode ASN.1 NULL from JSON.

◆ DecodeXER()

virtual void DecodeXER	(	System.String	buffer,
		System.String	attrs
	)

virtual

This method decodes an ASN.1 null value using the XML encoding rules (XER).

Parameters

buffer	String containing data to be decoded
attrs	Attributes string from element tag

◆ DecodeXML()

override void DecodeXML	(	System.String	buffer,
		System.String	attrs
	)

This method decodes an ASN.1 null value using the XML schema encoding rules(asn2xsd).

Parameters

buffer	String containing data to be decoded
attrs	Attributes string from element tag

◆ Encode() [1/8]

override int Encode	(	Asn1BerEncodeBuffer	buffer,
		bool	explicitTagging
	)

virtual

This method encodes an ASN.1 null value including the UNIVERSAL tag value and length if explicit tagging is specified. This overloaded version used the Basic Encoding Rules (BER).

Parameters

buffer	Encode message buffer object
explicitTagging	Flag indicating explicit tagging should be done

Returns: Length (in octets) of encoded component

Reimplemented from Asn1Type.

◆ Encode() [2/8]

override void Encode ( Asn1PerEncodeBuffer buffer )

virtual

This method encodes an ASN.1 null value in accordance with the Packed Encoding Rules (PER).

Parameters

buffer Encode message buffer object

Reimplemented from Asn1Type.

◆ Encode() [3/8]

override void Encode ( Asn1OerEncodeBuffer buffer )

virtual

Encode ASN.1 NULL type, using Octet Encoding Rules (OER).

Reimplemented from Asn1Type.

References Asn1XerEncoder.EncodeEmptyElement(), Asn1XmlEncoder.EncodeEmptyElement(), and Asn1XmlXerEncoder.Indent().

◆ Encode() [4/8]

override void Encode	(	Asn1XerEncoder	buffer,
		System.String	elemName
	)

virtual

This method encodes an ASN.1 null value using the XML encoding rules (XER).

Parameters

buffer	Encode message buffer object
elemName	Element name

Reimplemented from Asn1Type.

◆ Encode() [5/8]

override void Encode	(	Asn1XmlEncoder	buffer,
		System.String	elemName,
		System.String	nsPrefix
	)

virtual

This method encodes an ASN.1 null value using the XML Encoding as specified in the XML schema standard(asn2xsd).

Parameters

buffer	Encode message buffer object
elemName	Element name
nsPrefix	Element namespace value

Reimplemented from Asn1Type.

◆ Encode() [6/8]

virtual void Encode ( Asn1JsonOutputStream outstream )

virtual

Encode this ASN.1 null value to JSON

◆ Encode() [7/8]

override void Encode	(	Asn1BerOutputStream	outs,
		bool	explicitTagging
	)

virtual

This method encodes and writes to the stream an ASN.1 NULL value including the UNIVERSAL tag value and length if explicit tagging is specified. This overloaded version uses the Basic Encoding Rules (BER).

Throws, Exception thrown by C# System.IO.Stream for I/O error

Parameters

outs	BER Output Stream object
explicitTagging	Flag indicating explicit tagging should be done

Exceptions

Asn1Exception Thrown, if operation is failed.

Reimplemented from Asn1Type.

◆ Encode() [8/8]

override void Encode ( Asn1PerOutputStream outs )

virtual

This method encodes an ASN.1 null value in accordance with the Packed Encoding Rules (PER).

Also throws any exception thrown by the underlying Asn1PerOutputStream.

Parameters

outs	PER Output Stream object

Exceptions

Asn1Exception Thrown, if operation is failed.

Reimplemented from Asn1Type.

◆ Equals()

override bool Equals ( object o )

Tests for equality with any other object. Returns true if the input type is an Asn1Null object and false otherwise.

References Asn1BerEncodeBuffer.EncodeTagAndLength(), Asn1Type.NULL, and Asn1MessageBufferBase.TypeCode.

◆ ToString()

override System.String ToString ( )

This method will return a string representation of the null value. The format is the ASN.1 value format for this type..

Returns: Stringified representation of the value

References Asn1BerOutputStream.EncodeLength(), Asn1BerOutputStream.EncodeTag(), Asn1Tag.PRIM, and Asn1Tag.UNIV.

Member Data Documentation

◆ _TAG

new readonly Asn1Tag _TAG

static

The _TAG constant describes the universal tag for this data type (UNIVERSAL 5).

◆ NULL_VALUE

readonly Asn1Null NULL_VALUE = new Asn1Null()

static

The NULL_VALUE constant represents a NULL value.

Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ Decode() [1/4]

◆ Decode() [2/4]

◆ Decode() [3/4]

◆ Decode() [4/4]

◆ DecodeXER()

◆ DecodeXML()

◆ Encode() [1/8]

◆ Encode() [2/8]

◆ Encode() [3/8]

◆ Encode() [4/8]

◆ Encode() [5/8]

◆ Encode() [6/8]

◆ Encode() [7/8]

◆ Encode() [8/8]

◆ Equals()

◆ ToString()

Member Data Documentation

◆ _TAG

◆ NULL_VALUE