Newtonsoft.Json.JsonReader.ReadAsString C# (CSharp) Method

        public virtual string ReadAsString()
        {
            JsonToken t = GetContentToken();

            switch (t)
            {
                case JsonToken.None:
                case JsonToken.Null:
                case JsonToken.EndArray:
                    return null;
                case JsonToken.String:
                    return (string)Value;
            }

            if (JsonTokenUtils.IsPrimitiveToken(t))
            {
                if (Value != null)
                {
                    string s;
                    if (Value is IFormattable)
                    {
                        s = ((IFormattable)Value).ToString(null, Culture);
                    }
                    else if (Value is Uri)
                    {
                        s = ((Uri)Value).OriginalString;
                    }
                    else
                    {
                        s = Value.ToString();
                    }

                    SetToken(JsonToken.String, s, false);
                    return s;
                }
            }

            throw JsonReaderException.Create(this, "Error reading string. Unexpected token: {0}.".FormatWith(CultureInfo.InvariantCulture, t));
        }

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            string displayName = string.Empty;
            string address = string.Empty;
            while (reader.Read())
            {
                var tokenType = reader.TokenType;
                if (reader.TokenType == JsonToken.PropertyName)
                {
                    var val = (reader.Value as string )?? string.Empty;
                    if (val == "DisplayName")
                    {
                        displayName = reader.ReadAsString();
                    }
                    if (val == "Address")
                    {
                        address = reader.ReadAsString();
                    }
                }

                if (reader.TokenType == JsonToken.EndObject)
                {
                    break;
                }
            }

            var mailAddress = new MailAddress(address, displayName);
            return mailAddress;
        }