无法使用[]将索引应用于类型为“System.Collections.Specialized.NameValueCollection”的表达式， [英] Cannot apply indexing with [] to an expression of type 'System.Collections.Specialized.NameValueCollection'

问题描述

我已经尝试了太阳下的所有东西，以访问AppSettings，我无法让它工作。

I've tried everything under the sun to get access to the AppSettings and I cannot get this to work.

我有一个类库需要访问到web AppSettings。我检查过，没有
'System.Collections.Specialized.NameValueCollection'可以导入。

I've got a class library that needs access to the web AppSettings. I've checked and there is no 'System.Collections.Specialized.NameValueCollection' to import.

任何人都有任何想法？

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Web.Configuration;

public static class httpresponsebase_setoauthfromcookie
{
    public static void SetOauthFromCookie(this HttpResponseBase response, string verify,
                                          string token, string tokenSecret,
                                          string userName,
                                          bool isTwitter)
    {


        string pas =  WebConfigurationManager.AppSettings["cryptpass"],
               crypt = ((verify.Length > 3 ? (verify + ":") : "twit") + token + ":" + tokenSecret).Encrypt(pas);
        //
        var cookie = new HttpCookie(userName + (isTwitter ? "twitter" : "linkedin"), HttpServerUtility.UrlTokenEncode(Convert.FromBase64String(crypt)));
        cookie.Expires = DateTime.Now.AddDays(1);
        response.Cookies.Add(cookie);
    }}

推荐答案

我添加了对System 4.0的引用，一切。

I added a reference to System 4.0 and that fixed everything .

这篇关于无法使用[]将索引应用于类型为“System.Collections.Specialized.NameValueCollection”的表达式，的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！