AsnReader.ReadSequence(Nullable<Asn1Tag>) Method

Definition

Namespace:

System.Formats.Asn1

Assembly:

System.Formats.Asn1.dll

Package:

System.Formats.Asn1 v9.0.0-preview.3.24172.9

Source:

AsnDecoder.Sequence.cs

Reads the next value as a SEQUENCE or SEQUENCE-OF with the specified tag and returns the result as a new reader positioned at the first value in the sequence (or with HasData == false).

public System.Formats.Asn1.AsnReader ReadSequence (System.Formats.Asn1.Asn1Tag? expectedTag = default);

member this.ReadSequence : Nullable<System.Formats.Asn1.Asn1Tag> -> System.Formats.Asn1.AsnReader

Public Function ReadSequence (Optional expectedTag As Nullable(Of Asn1Tag) = Nothing) As AsnReader

Parameters

expectedTag

Nullable<Asn1Tag>

The tag to check for before reading, or null for the default tag (Universal 16).

Returns

AsnReader

A new reader positioned at the first value in the sequence (or with HasData == false).

Exceptions

AsnContentException

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.

ArgumentException

expectedTag.TagClass is Universal, but expectedTag.TagValue is not correct for the method.

Remarks

the nested content is not evaluated by this method, and may contain data which is not valid under the current encoding rules.