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OracleDataReader.GetBytes Method

Note: This namespace, class, or member is supported only in version 1.1 of the .NET Framework.

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

[Visual Basic]
Public Overridable Function GetBytes( _
   ByVal i As Integer, _
   ByVal fieldOffset As Long, _
   ByVal buffer2() As Byte, _
   ByVal bufferoffset As Integer, _
   ByVal length As Integer _
) As Long Implements IDataRecord.GetBytes
public virtual long GetBytes(
 int i,
 long fieldOffset,
 byte[] buffer2,
 int bufferoffset,
 int length
public: virtual __int64 GetBytes(
 int i,
 __int64 fieldOffset,
 unsigned char buffer2 __gc[],
 int bufferoffset,
 int length
public function GetBytes(
   i : int,
 fieldOffset : long,
 buffer2 : Byte[],
 bufferoffset : int,
 length : int
) : long;


The zero-based column ordinal.
The index within the field where the read operation is to begin.
The buffer into which to read the stream of bytes.
The index where buffer is to begin the write operation.
The number of bytes to read.

Return Value

The actual number of bytes read.




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.


Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

See Also

OracleDataReader Class | OracleDataReader Members | System.Data.OracleClient Namespace