AsnReader.TryReadCharacterString Method
Definition
Important
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Reads the next value as character string with the specified tag and encoding type, copying the decoded value into a provided destination buffer.
public bool TryReadCharacterString (Span<char> destination, System.Formats.Asn1.UniversalTagNumber encodingType, out int charsWritten, System.Formats.Asn1.Asn1Tag? expectedTag = default);member this.TryReadCharacterString : Span<char> * System.Formats.Asn1.UniversalTagNumber * int * Nullable<System.Formats.Asn1.Asn1Tag> -> boolPublic Function TryReadCharacterString (destination As Span(Of Char), encodingType As UniversalTagNumber, ByRef charsWritten As Integer, Optional expectedTag As Nullable(Of Asn1Tag) = Nothing) As BooleanParameters
- encodingType
- UniversalTagNumber
One of the enumeration values representing the value type to process.
- charsWritten
- Int32
On success, receives the number of chars written to destination.
The tag to check for before reading, or null for the universal tag that is
appropriate to the requested encoding type.
Returns
true and advances the reader if destination had sufficient
length to receive the value, otherwise
false and the reader does not advance.
Exceptions
encodingType is not a known character string type.
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.
-or-
The string did not successfully decode.
