Stream.WriteByte(Byte) Method
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Writes a byte to the current position in the stream and advances the position within the stream by one byte.
public:
virtual void WriteByte(System::Byte value);public virtual void WriteByte(byte value);abstract member WriteByte : byte -> unit
override this.WriteByte : byte -> unitPublic Overridable Sub WriteByte (value As Byte)- value
- Byte
The byte to write to the stream.
An I/O error occurs.
The stream does not support writing, or the stream is already closed.
Methods were called after the stream was closed.
Use the CanWrite property to determine whether the current instance supports writing.
The default implementation on Stream creates a new single-byte array and then calls Write(Byte[], Int32, Int32). While this is formally correct, it is inefficient. Any stream with an internal buffer should override this method and provide a much more efficient version that writes to the buffer directly, avoiding the extra array allocation on every call.
| 製品 | バージョン |
|---|---|
| .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 | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
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