如何用最少的C#代码将NameValueCollection所有的key与value拼接成字符串

Question

实际应用场景是将http请求的Request.Headers（类型就是NameValueCollection）记录到日志。

Answer 1

 string.Join(",",Request.Headers.AllKeys.SelectMany(Request.Headers.GetValues, (k, v) => new { key = k, value = v }));

Answer 2

哈哈.tojson();我都是这么干的.

Answer 3

Headers = JsonConvert.SerializeObject(Request.Headers)

Answer 4

先转字典 再json

JsonConvert.SerializeObject(Request.Headers.AllKeys.ToDictionary(k=>k,v=>Request.Headers[v]))

Answer 5

我觉得还是用string.Join直接拼比较实用，至少不需要依赖第三方包。

Answer 6

报错：

'NameValueCollection' does not contain a definition for 'Select' and no extension method 'Select' accepting a first argument of type 'NameValueCollection' could be found