EntityDataReader.GetBytes(Int32, Int64, Byte[], Int32, Int32) Methode

Definition

Liest einen Bytestream aus der angegebenen Spalte beginnend an der durch dataIndex angegebenen Position in den Puffer beginnend an der durch bufferIndex angegebenen Position.Reads a stream of bytes from the specified column, starting at location indicated by dataIndex, into the buffer, starting at the location indicated by bufferIndex.

public:
 override long GetBytes(int ordinal, long dataOffset, cli::array <System::Byte> ^ buffer, int bufferOffset, int length);
public override long GetBytes (int ordinal, long dataOffset, byte[] buffer, int bufferOffset, int length);
override this.GetBytes : int * int64 * byte[] * int * int -> int64
Public Overrides Function GetBytes (ordinal As Integer, dataOffset As Long, buffer As Byte(), bufferOffset As Integer, length As Integer) As Long

Parameter

ordinal
Int32

Die nullbasierte Ordnungszahl der Spalte.The zero-based column ordinal.

dataOffset
Int64

Der Index in der Zeile, an dem der Lesevorgang beginnen soll.The index within the row from which to begin the read operation.

buffer
Byte[]

Der Puffer, in den die Daten kopiert werden sollen.The buffer into which to copy the data.

bufferOffset
Int32

Der Index im Puffer, an den die Daten kopiert werden.The index with the buffer to which the data will be copied.

length
Int32

Die maximale Anzahl der zu lesenden Zeichen.The maximum number of characters to read.

Gibt zurück

Die tatsächlich gelesene Anzahl von Bytes.The actual number of bytes read.

Implementiert

Gilt für: