Can we Pass LDAP string to instead of server-name, username & password

Question

we have the following code to connect to Active Directory using PrincipleContext, where we pass the servername,username & password :-

string ADServerName = System.Web.Configuration.WebConfigurationManager.AppSettings["ADServerName"];  
string ADusername = System.Web.Configuration.WebConfigurationManager.AppSettings["ADUserName"];  
string ADpassword = System.Web.Configuration.WebConfigurationManager.AppSettings["ADPassword"];  
using (var context = new PrincipalContext(ContextType.Domain, ADServerName, ADusername, ADpassword))  

so my question is can we connect to this using LDAP string? Thanks

Answer 1

Hi @john john ,
Yes,you can do that.
You can pass the LDAP string via DirectoryEntry.
https://learn.microsoft.com/en-us/dotnet/api/system.directoryservices.directoryentry.-ctor?view=windowsdesktop-7.0#system-directoryservices-directoryentry-ctor(system-string-system-string-system-string
You can do this:

var directoryEntry = new DirectoryEntry("LDAP://***");  
directoryEntry.Username = "***";  
directoryEntry.Password = "***";  

Then you can query "AD" using the DirectorySearcher.

var directorySearcher = new DirectorySearcher(directoryEntry);  

Best regards,
Lan Huang

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