DbDataReader.GetBytes Method

Reads a stream of bytes from the specified column, starting at location indicated by dataOffset, into the buffer, starting at the location indicated by bufferOffset.

Namespace: System.Data.Common
Assembly: System.Data (in system.data.dll)

virtual long long GetBytes (
	int ordinal, 
	long long dataOffset, 
	array<unsigned char>^ buffer, 
	int bufferOffset, 
	int length
) abstract
public abstract long GetBytes (
	int ordinal, 
	long dataOffset, 
	byte[] buffer, 
	int bufferOffset, 
	int length
public abstract function GetBytes (
	ordinal : int, 
	dataOffset : long, 
	buffer : byte[], 
	bufferOffset : int, 
	length : int
) : long
Not applicable.



The zero-based column ordinal.


The index within the row from which to begin the read operation.


The buffer into which to copy the data.


The index with the buffer to which the data will be copied.


The maximum number of characters to read.

Return Value

The actual number of bytes read.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

.NET Compact Framework

Supported in: 2.0

XNA Framework

Supported in: 1.0

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