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DbDataReader.GetBytes Method

.NET Framework 4

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)

Syntax

C++

Copy

public abstract long GetBytes(
	int ordinal,
	long dataOffset,
	byte[] buffer,
	int bufferOffset,
	int length
)

Parameters

ordinal: Type: System.Int32
The zero-based column ordinal.

dataOffset: Type: System.Int64
The index within the row from which to begin the read operation.

buffer: Type: System.Byte[]
The buffer into which to copy the data.

bufferOffset: Type: System.Int32
The index with the buffer to which the data will be copied.

length: Type: System.Int32
The maximum number of characters to read.

Return Value

Type: System.Int64
The actual number of bytes read.

Implements

IDataRecord.GetBytes(Int32, Int64, Byte[], Int32, Int32)

Exceptions

Exception	Condition
InvalidCastException	The specified cast is not valid.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

DbDataReader Class

System.Data.Common Namespace

Other Resources

ADO.NET Managed Providers and DataSet Developer Center

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