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)
abstract GetChars : i:int * fieldOffset:int64 * buffer2:char[] * bufferoffset:int * length:int -> int64 override GetChars : i:int * fieldOffset:int64 * buffer2:char[] * bufferoffset:int * length:int -> int64
Parameters
- i
- Type: System.Int32
The zero-based column ordinal.
- fieldOffset
- Type: System.Int64
The index within the row where the read operation is to begin.
- buffer2
- Type: System.Char[]
The buffer into which to copy data.
- bufferoffset
- Type: System.Int32
The index where buffer is to begin the write operation.
- length
- Type: System.Int32
The number of characters to read.
Implements
IDataRecord.GetChars(Int32, Int64, Char[], Int32, Int32)GetChars returns the number of available characters 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 GetChars has already been used to obtain characters 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. GetChars returns the length of the field in characters.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
