AsnDecoder.ReadNull Method
Definition
Important
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Reads a null value from source with a specified tag under the specified encoding rules.
public static void ReadNull (ReadOnlySpan<byte> source, System.Formats.Asn1.AsnEncodingRules ruleSet, out int bytesConsumed, System.Formats.Asn1.Asn1Tag? expectedTag = default);static member ReadNull : ReadOnlySpan<byte> * System.Formats.Asn1.AsnEncodingRules * int * Nullable<System.Formats.Asn1.Asn1Tag> -> unitPublic Shared Sub ReadNull (source As ReadOnlySpan(Of Byte), ruleSet As AsnEncodingRules, ByRef bytesConsumed As Integer, Optional expectedTag As Nullable(Of Asn1Tag) = Nothing)Parameters
- source
- ReadOnlySpan<Byte>
The buffer containing encoded data.
- ruleSet
- AsnEncodingRules
The encoding constraints to use when interpreting the data.
- bytesConsumed
- Int32
When this method returns, the total number of bytes for the encoded value. This parameter is treated as uninitialized.
The tag to check for before reading, or null for the default tag (Universal 5).
Exceptions
ruleSet is not defined.
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.
