AsnReader.TryReadBitString Method
Definition
Important
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Reads the next value as a BIT STRING with a specified tag, copying the value into a provided destination buffer.
public bool TryReadBitString (Span<byte> destination, out int unusedBitCount, out int bytesWritten, System.Formats.Asn1.Asn1Tag? expectedTag = default);member this.TryReadBitString : Span<byte> * int * int * Nullable<System.Formats.Asn1.Asn1Tag> -> boolPublic Function TryReadBitString (destination As Span(Of Byte), ByRef unusedBitCount As Integer, ByRef bytesWritten As Integer, Optional expectedTag As Nullable(Of Asn1Tag) = Nothing) As BooleanParameters
- unusedBitCount
- Int32
On success, receives the number of bits in the last byte which were reported as "unused" by the writer.
- bytesWritten
- Int32
On success, receives the number of bytes written to destination.
The tag to check for before reading, or null for the default tag (Universal 1).
Returns
true and advances the reader if destination had sufficient length to receive the value, otherwise false and the reader does not advance.
Exceptions
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.
