GetChars Method

OracleDataReader.GetChars Method

Reads a stream of characters 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)

public override long GetChars(
	int i,
	long fieldOffset,
	char[] buffer2,
	int bufferoffset,
	int length


Type: System.Int32

The zero-based column ordinal.

Type: System.Int64

The index within the row where the read operation is to begin.

Type: System.Char[]

The buffer into which to copy data.

Type: System.Int32

The index where buffer is to begin the write operation.

Type: System.Int32

The number of characters to read.

Return Value

Type: System.Int64
The number of characters read.


IDataRecord.GetChars(Int32, Int64, Char[], Int32, Int32)

If you call GetChars with a non-null buffer, the data is read into the buffer, and GetChars will return the number of bytes that were read into the buffer.

If you call GetChars with a null buffer, then no data is read, and GetChars will return the number of characters that are available to read. In most cases, this number is the full length of the field. However, if GetChars has already been used to read characters from the field, then the return value may instead be only the number of characters remaining in the field. This may be the case, for example, if the OracleDataReader was created by using CommandBehavior.SequentialAccess.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1

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