Bombsquad.DynamicMedia.Implementations.ResultHandlers.BytesRangeResultHandler.TryGetRequestedRange C# (CSharp) Method

        private bool TryGetRequestedRange( HttpRequestBase request, out Range range )
        {
            var rangeHeader = request.Headers[ "Range" ];
            if ( string.IsNullOrEmpty( rangeHeader ) )
            {
                range = null;
                return false;
            }

            if ( !rangeHeader.StartsWith( RangeByteHeaderStart ) )
            {
                range = null;
                return false;
            }

            var parts = rangeHeader.Substring( RangeByteHeaderStart.Length ).Split( '-' );

            if ( parts.Length != 2 )
            {
                range = null;
                return false;
            }

            range = new Range
            {
                Start = string.IsNullOrEmpty( parts[ 0 ] ) ? (long?) null : long.Parse( parts[ 0 ] ),
                End = string.IsNullOrEmpty( parts[ 1 ] ) ? (long?) null : long.Parse( parts[ 1 ] )
            };
            return true;
        }