ADAM LDAP Authentification via user distinguishedName

[C# Programming]

Hi everyone,

my customer has an ldap adam where i need to list users in this path : OU=activePersons,OU=persons,O=mycompany,DC=fr

I need to connect via an adam user distinguishedName like : uid=theuser,OU=serviceAccounts,O=mycompany,DC=fr

He gave me Base DN : o=mycompany,dc=fr


i've already have code from classic AD by using
System.DirectoryServices and System.DirectoryServices.ActiveDirectory.

But i don't know how to connect to this ADAM by using DistinguishedName...

Thanks for your help