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OracleBFile::CopyTo Method (Int64, OracleLob, Int64, Int64)

Copies from this OracleBFile to a destination OracleLob with the specified amount of data, the source offset, and the destination offset.

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

long long CopyTo(
	long long sourceOffset, 
	OracleLob^ destination, 
	long long destinationOffset, 
	long long amount


Type: System::Int64
The offset from which to copy.
Type: System.Data.OracleClient::OracleLob
The destination OracleLob.
Type: System::Int64
The offset to which to copy.
Type: System::Int64
The quantity of data, in bytes, to copy.

Return Value

Type: System::Int64
The number of bytes copied.


The value of the amount parameter is less than zero or greater than 4 gigabytes.


The destination OracleLob is a null object reference.


The destination is a null OracleLob.


The connection with which this OracleBFile is associated is closed.


The OracleBFile object is closed or disposed.

The underlying data types of the source OracleBFile and the destination OracleLob must be compatible. For example, you cannot copy binary data to a destination OracleLob that has a character data type.

You must have write access to the destination OracleLob for the CopyTo operation to execute correctly.

.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.