How to authenticate using Active Directory – C#

1. Include

 

using System.DirectoryServices;

 

2. Add the code below.

 

protected void Button1_Click(object sender, EventArgs e)

{

  //pass in AD server name, account , password that can access to this server

  DirectoryEntry entry = new DirectoryEntry(“LDAP://dc3.mimos.local”, “banjemin”, “password”);

  DirectorySearcher mySearcher = new DirectorySearcher(entry);

  //obama is the user name that you want to search

  mySearcher.Filter = “samaccountname=” + “obama”;

 

  SearchResult result;

     

  result = mySearcher.FindOne();

}