BplusDotNet.BufferFile.getBuffer C# (CSharp) Метод

        public void getBuffer(long buffernumber, byte[] toArray, int startingAt, int length)
        {
            if (buffernumber>=this.nextBufferNumber())
            {
                throw new BufferFileException("last buffer is "+this.nextBufferNumber()+" not "+buffernumber);
            }
            if (length>this.buffersize)
            {
                throw new BufferFileException("buffer size too small for retrieval "+buffersize+" need "+length);
            }
            long seekPosition = this.bufferSeek(buffernumber);
            this.fromfile.Seek(seekPosition, System.IO.SeekOrigin.Begin);
            this.fromfile.Read(toArray, startingAt, length);
        }