我在sharepoint onlin上的webclient.openread（url）上收到401未经授权的错误 [英] I am getting 401 unauthorized error on webclient.openread(url) in sharepoint onlin

问题描述

Hi,

I am getting 401 unauhtorized issue,when I try to execute this "Stream stream = webClient.OpenRead(imageInformation.Url)" line;

I am giving the full piece of code for your reference.

using (WebClient webClient = new WebClient())
            {
                webClient.Credentials = new SharePointOnlineCredentials(ConfigSettings.VNextSiteUsername, password);
                webClient.Headers.Add(CommonConstants.Authentication, "f");

                if (imageInformation.Url != null)
                {
                    Stream stream = webClient.OpenRead(imageInformation.Url);

                    Bitmap bitmap = new Bitmap(stream);
                    stream.Flush();
                    stream.Close();
                    Directory.CreateDirectory(ConfigSettings.DownloadPath);
                    bitmap.Save(ConfigSettings.DownloadPath + imageInformation.GPNNumber + '.' + imageInformation.Extension);
                    Console.WriteLine("Profile pictures downloaded to local - " + imageInformation.GPNNumber + '.' + imageInformation.Extension);
                }
            }  


Please help me.

< b>我尝试了什么：



我试过禁用我的代理设置

我已经检查了我的凭据也是/>
它一直工作到现在，突然一个月后它无法正常工作

What I have tried:

I have tried disabling my proxy settings
I have checked my credentials also
It was working till now,all of a sudden after a month it is not working

推荐答案

尝试添加这一行，这可能对你有所帮助< br $>

try adding this line, this might help you

webClient.UseDefaultCredentials = true;

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