Microsoft.AspNetCore.Buffering.BufferingWriteStream.SetLength C# (CSharp) Méthode

        public override void SetLength(long value)
        {
            if (_isBuffering)
            {
                if (value != 0)
                {
                    throw new ArgumentOutOfRangeException(nameof(value), value, nameof(Length) + " can only be set to 0.");
                }
                _buffer.Position = value;
                _buffer.SetLength(value);
            }
            else
            {
                // May throw
                _innerStream.SetLength(value);
            }
        }