DbDataReader.GetBytes(Int32, Int64, Byte[], Int32, Int32) Method
Definition
Important
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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 -> int64Public MustOverride Function GetBytes (ordinal As Integer, dataOffset As Long, buffer As Byte(), bufferOffset As Integer, length As Integer) As LongParameters
- 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
The actual number of bytes read.
Implements
Exceptions
The column index is out of range.
The specified cast is not valid.
Applies to
See also
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