Question

这是我得到的错误：

无法初始化类型＆＃39; HttpClientHandler＆＃39;有一个集合初始化程序因为它没有实现＆＃39; System.Collections.IEnumerable＆＃39;

代码：

using System;
using System.Net;
using System.Net.Http;

namespace Sharepoint_2013_REST_API
{
    public class Program
    {
        public void Main(string[] args)
        {
            //Init
            string baseURL = "";
            string uriString = "";
            string User = "";
            string Password = "";
            string Domain = "";

            System.Net.Http.HttpClient _Client = new System.Net.Http.HttpClient();
            _Client.BaseAddress = new Uri(baseURL);
            HttpResponseMessage resp = _Client.GetAsync(uriString).Result;
            string respString = resp.Content.ReadAsStringAsync().Result;

            _Client = new System.Net.Http.HttpClient(new HttpClientHandler() { new NetworkCredential(User, Password, Domain)});

            if (resp.StatusCode != HttpStatusCode.OK)
            {
                Console.Write("Status code: " + resp.StatusCode);
                Console.ReadLine();
            }
        }


    }
}

希望你能帮我解决这个错误吗？

Answer 1

您忘记将NewworkCredential实例分配给对象初始值设定项中的Credentials属性。

new HttpClient(new HttpClientHandler() {{Credentials = new System.Net.NetworkCredential(user, pwd, domain)});

Answer 2

您需要指定要初始化的属性。在这种情况下，它是Credentials属性。

_Client = 
    new HttpClient(
        new HttpClientHandler
        {
            Credentials = new NetworkCredential(User, Password , Domain)
        });

Answer 3

代码不正确......应该是：

new System.Net.Http.HttpClient(new HttpClientHandler { Credentials = new NetworkCredential(user, pwd, domain)});

Answer 4

以这种方式尝试：

_Client = new System.Net.Http.HttpClient(
    new System.Net.Http.HttpClientHandler() 
    {Credentials = new System.Net.NetworkCredential(User, Password, Domain)});

带括号的部分称为object initializer。但是，如果您未提供要尝试初始化的属性，即Credentials =，编译器会错误地认为您正在尝试提供集合初始值设定项，而不是对象初始化程序。

初始化集合时，您可以使用集合初始值设定项，例如一个数组，像这样：

string[] myStrings = new[] {"first", "second", "third"};

无法初始化类型＆＃39; HttpClientHandler＆＃39;

4 个答案: