Ask Learn
Preview
Ask Learn is an AI assistant that can answer questions, clarify concepts, and define terms using trusted Microsoft documentation.
Please sign in to use Ask Learn.
Sign inCryptoStream.Read(Byte[], Int32, Int32) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Reads a sequence of bytes from the current stream and advances the position within the stream by the number of bytes read.
public:
override int Read(cli::array <System::Byte> ^ buffer, int offset, int count);C#
public override int Read(byte[] buffer, int offset, int count);override this.Read : byte[] * int * int -> intPublic Overrides Function Read (buffer As Byte(), offset As Integer, count As Integer) As Integer- buffer
- Byte[]
An array of bytes. A maximum of count bytes are read from the current stream and stored in buffer.
- offset
- Int32
The byte offset in buffer at which to begin storing the data read from the current stream.
- count
- Int32
The maximum number of bytes to be read from the current stream.
The total number of bytes read into the buffer. This can be less than the number of bytes requested if that many bytes are not currently available, or zero if the end of the stream has been reached.
The CryptoStreamMode associated with current CryptoStream object does not match the underlying stream. For example, this exception is thrown when using Read with an underlying stream that is write only.
offset or count is less than zero.
The sum of the count and offset parameters is longer than the length of the buffer.
Starting in .NET 6, this method might not read as many bytes as were requested. For more information, see Partial and zero-byte reads in DeflateStream, GZipStream, and CryptoStream.
Applies to
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.6, 2.0, 2.1 |