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MemoryStream.Write Method

  • Reference

Definition

Namespace:
System.IO
Assembly:
System.Runtime.dll
Assembly:
System.Runtime.Extensions.dll
Assembly:
netstandard.dll
Assembly:
System.IO.dll
Assembly:
mscorlib.dll

Overloads

Write(ReadOnlySpan<Byte>)

Writes the sequence of bytes contained in source into the current memory stream and advances the current position within this memory stream by the number of bytes written.
Write(Byte[], Int32, Int32)

Writes a block of bytes to the current stream using data read from a buffer.

Write(ReadOnlySpan<Byte>)

Source:
MemoryStream.cs
Source:
MemoryStream.cs
Source:
MemoryStream.cs

Writes the sequence of bytes contained in source into the current memory stream and advances the current position within this memory stream by the number of bytes written.

public:
 override void Write(ReadOnlySpan<System::Byte> source);
public:
 override void Write(ReadOnlySpan<System::Byte> buffer);
public override void Write (ReadOnlySpan<byte> source);
public override void Write (ReadOnlySpan<byte> buffer);
override this.Write : ReadOnlySpan<byte> -> unit
override this.Write : ReadOnlySpan<byte> -> unit
Public Overrides Sub Write (source As ReadOnlySpan(Of Byte))
Public Overrides Sub Write (buffer As ReadOnlySpan(Of Byte))

Parameters

sourcebuffer
ReadOnlySpan<Byte>

A region of memory. This method copies the contents of this region to the current memory stream.

Applies to

Write(Byte[], Int32, Int32)

Source:
MemoryStream.cs
Source:
MemoryStream.cs
Source:
MemoryStream.cs

Writes a block of bytes to the current stream using data read from a buffer.

public:
 override void Write(cli::array <System::Byte> ^ buffer, int offset, int count);
public override void Write (byte[] buffer, int offset, int count);
override this.Write : byte[] * int * int -> unit
Public Overrides Sub Write (buffer As Byte(), offset As Integer, count As Integer)

Parameters

buffer
Byte[]

The buffer to write data from.

offset
Int32

The zero-based byte offset in buffer at which to begin copying bytes to the current stream.

count
Int32

The maximum number of bytes to write.

Exceptions

ArgumentNullException

buffer is null.

NotSupportedException

The stream does not support writing. For additional information see CanWrite.

-or-

The current position is closer than count bytes to the end of the stream, and the capacity cannot be modified.

ArgumentException

offset subtracted from the buffer length is less than count.

ArgumentOutOfRangeException

offset or count are negative.

IOException

An I/O error occurs.

ObjectDisposedException

The current stream instance is closed.

Examples

This code example is part of a larger example provided for the MemoryStream class.

// Write the first string to the stream.
memStream->Write( firstString, 0, firstString->Length );

// Write the first string to the stream.
memStream.Write(firstString, 0 , firstString.Length);

' Write the first string to the stream.
memStream.Write(firstString, 0 , firstString.Length)

Remarks

This method overrides Write.

The offset parameter gives the offset of the first byte in buffer to write from, and the count parameter gives the number of bytes to write. If the write operation is successful, the current position within the stream is advanced by the number of bytes written. If an exception occurs, the current position within the stream is unchanged.

Except for a MemoryStream constructed with a byte[] parameter, write operations at the end of a MemoryStream expand the MemoryStream.

See also

Applies to