Get windows logon user in asp.net web forms iis

Question

我想以asp.net Web形式获取活动目录登录用户。我使用了以下代码段，但在运行时或iis上均不起作用。

Request.ServerVariables["REMOTE_USER"].ToString();

Answer 1

Try using System.Web.HttpContext.Current.User.Identity; to get details of the authenticated user.

Answer 2

Use Directory Entry to get the user status.

string username = "";
string userpassword = "";
bool valid = false;
using (DirectoryEntry Direntry = new DirectoryEntry(path, username, userpassword))   
  {
      using (DirectorySearcher Dsearch = new DirectorySearcher(Direntry))
            {
                Dsearch.Filter = "(cn=" + username + ")";
                try
                {
                    SearchResult adsSearchResult = Dsearch.FindOne();
                    if (adsSearchResult != null)
                    {
                        valid = true;
                    }   
                }
                catch (Exception ex)
                {

                }
                finally
                {
                    Direntry.Close();
                }
            }
        }

Answer 3

One additional change you may need to make is in the web.config file.

Change the authentication mode from Forms to Windows.

 <authentication mode="Windows"/> 

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