System.IO.TextReader.ReadToEnd C# (CSharp) Method

        public virtual string ReadToEnd()
        {
            char[] chars = new char[4096];
            int len;
            StringBuilder sb = new StringBuilder(4096);
            while ((len = Read(chars, 0, chars.Length)) != 0)
            {
                sb.Append(chars, 0, len);
            }
            return sb.ToString();
        }

        /// <summary>
        /// Parse a query string
        /// </summary>
        /// <param name="reader">string to parse</param>
        /// <param name="parameters">Parameter collection to fill</param>
        /// <returns>A collection</returns>
        /// <exception cref="ArgumentNullException"><c>reader</c> is <c>null</c>.</exception>
        public void Parse(TextReader reader, IParameterCollection parameters)
        {
            if (reader == null)
                throw new ArgumentNullException("reader");

            var canRun = true;
            while (canRun)
            {
                var result = reader.ReadToEnd("&=");
                var name = Uri.UnescapeDataString(result.Value);
                switch (result.Delimiter)
                {
                    case '&':
                        parameters.Add(name, string.Empty);
                        break;
                    case '=':
                        result = reader.ReadToEnd("&");
                        parameters.Add(name, Uri.UnescapeDataString(result.Value));
                        break;
                    case char.MinValue:
                        // EOF = no delimiter && no value
                        if (!string.IsNullOrEmpty(name))
                            parameters.Add(name, string.Empty);
                        break;
                }

                canRun = result.Delimiter != char.MinValue;
            }
        }