AsnReader.ReadBitString(Int32, Nullable<Asn1Tag>) Method

Definition

Namespace:

System.Formats.Asn1

Assembly:

System.Formats.Asn1.dll

Source:

AsnDecoder.BitString.cs

Reads the next value as a BIT STRING with a specified tag, returning the value in a byte array.

public byte[] ReadBitString (out int unusedBitCount, System.Formats.Asn1.Asn1Tag? expectedTag = default);

member this.ReadBitString : int * Nullable<System.Formats.Asn1.Asn1Tag> -> byte[]

Public Function ReadBitString (ByRef unusedBitCount As Integer, Optional expectedTag As Nullable(Of Asn1Tag) = Nothing) As Byte()

Parameters

unusedBitCount

Int32

On success, receives the number of bits in the last byte which were reported as "unused" by the writer.

expectedTag

Nullable<Asn1Tag>

The tag to check for before reading, or null for the default tag (Universal 1).

Returns

Byte[]

A copy of the value in a newly allocated, precisely sized, array.

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.