IDataRecord::GetBytes Method (Int32, Int64, array<Byte>^, Int32, Int32)
Reads a stream of bytes from the specified column offset into the buffer as an array, starting at the given buffer offset.
Assembly: System.Data (in System.Data.dll)
long long GetBytes( int i, long long fieldOffset, array<unsigned char>^ buffer, int bufferoffset, int length )
The zero-based column ordinal.
The index within the field from which to start the read operation.
The buffer into which to read the stream of bytes.
The index for buffer to start the read operation.
The number of bytes to read.
Return ValueType: System::Int64
The actual number of bytes read.
returns the number of available bytes in the field. Frequently this is the exact length of the field. However, the number returned may be less than the true length of the field if GetBytes has already been used to obtain bytes from the field.
If you pass a buffer that is null,returns the length of the row in bytes.
No conversions are performed; therefore the data retrieved must already be a byte array.
Available since 1.1