This documentation is archived and is not being maintained.

OracleDataReader::GetBytes Method

Reads a stream of bytes from the specified column offset into the buffer as an array, starting at the given buffer offset.

Namespace:  System.Data.OracleClient
Assembly:  System.Data.OracleClient (in System.Data.OracleClient.dll)

virtual long long GetBytes(
	int i, 
	long long fieldOffset, 
	array<unsigned char>^ buffer2, 
	int bufferoffset, 
	int length
) override


Type: System::Int32
The zero-based column ordinal.
Type: System::Int64
The index within the field where the read operation is to begin.
Type: array<System::Byte>
The buffer into which to read the stream of bytes.
Type: System::Int32
The index where buffer is to begin the write operation.
Type: System::Int32
The number of bytes to read.

Return Value

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


IDataRecord::GetBytes(Int32, Int64, array<Byte>, Int32, Int32)

GetBytes returns the number of available bytes in the field. In most cases this is the exact length of the field. However, the number returned may be less than the true length of the field if GetBytes has already been used to obtain bytes from the field. This may be the case, for example, if the OracleDataReader is reading a large data structure into a buffer. For more information, see the SequentialAccess setting of CommandBehavior.

If you pass a buffer that is a null value, GetBytes returns the length of the field in bytes.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1

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.