DbDataReader.GetBytes(Int32, Int64, Byte[], Int32, Int32) Method

Reference

Definition

Namespace:: System.Data.Common

Assembly:: System.Data.Common.dll

Assembly:: System.Data.dll

Assembly:: netstandard.dll

Source:: DbDataReader.cs

Source:: DbDataReader.cs

Source:: DbDataReader.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

When overridden in a derived class, reads a specified number of bytes from the specified column starting at a specified index and writes them to a buffer starting at a specified position in the buffer.

public:
 abstract long GetBytes(int ordinal, long dataOffset, cli::array <System::Byte> ^ buffer, int bufferOffset, int length);

public abstract long GetBytes (int ordinal, long dataOffset, byte[] buffer, int bufferOffset, int length);

public abstract long GetBytes (int ordinal, long dataOffset, byte[]? buffer, int bufferOffset, int length);

abstract member GetBytes : int * int64 * byte[] * int * int -> int64

Public MustOverride Function GetBytes (ordinal As Integer, dataOffset As Long, buffer As Byte(), bufferOffset As Integer, length As Integer) As Long

Parameters

ordinal: Int32

The zero-based column ordinal.

dataOffset: Int64

The index within the row from which to begin the read operation.

buffer: Byte[]

The buffer into which to copy the data.

bufferOffset: Int32

The index with the buffer to which the data will be copied.

length: Int32

The maximum number of bytes to read.

Returns

Int64

The actual number of bytes read.

Implements

GetBytes(Int32, Int64, Byte[], Int32, Int32)

Exceptions

IndexOutOfRangeException

The column index is out of range.

InvalidCastException

The specified cast is not valid.

Applies to

แชร์ผ่าน