Can't create PrincipalContext in ActiveDirectory

Question

I am using this code from a .NET Forms application to try and create a PrincipalContext object.

var oPrincipalContext = new PrincipalContext(
                ContextType.Domain, 
                "mydomain.workgroup",
                "CN=users,CN=mydomain,CN=workgroup", 
                ContextOptions.Bind,                    
                "ADAdmin", 
                "ADAdminPassword");

I also tried this with but got the same error.

var oPrincipalContext = new PrincipalContext(
                ContextType.Domain, 
                "mydomain.workgroup",
                "CN=users,CN=mydomain,CN=workgroup", 
                ContextOptions.Negotiate,                    
                "ADAdmin", 
                "ADAdminPassword");

I have also tried ADAdmin@mydomain.workgroup as the user id.

I am getting this error

Message=An operations error occurred.

StackTrace=   at System.DirectoryServices.AccountManagement.PrincipalContext.DoLDAPDirectoryInit()
   at System.DirectoryServices.AccountManagement.PrincipalContext.DoDomainInit()
   at System.DirectoryServices.AccountManagement.PrincipalContext.Initialize()
   at System.DirectoryServices.AccountManagement.PrincipalContext.get_ConnectedServer()
   at WindowsFormsApplication1.Form1.button1_Click(Object sender, EventArgs e)

InnerException=An operations error occurred.

StackTrace=   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.get_SchemaEntry()
   at System.DirectoryServices.AccountManagement.ADStoreCtx.IsContainer(DirectoryEntry de)
   at System.DirectoryServices.AccountManagement.ADStoreCtx..ctor(DirectoryEntry ctxBase, Boolean ownCtxBase, String username, String password, ContextOptions options)
   at System.DirectoryServices.AccountManagement.PrincipalContext.CreateContextFromDirectoryEntry(DirectoryEntry entry)
   at System.DirectoryServices.AccountManagement.PrincipalContext.DoLDAPDirectoryInit()

I am logged in as a user with DomainAdmin privileges in AD.

The computer I am running this from has DomainAdmin privileges in AD.

This link has a solution but it is for IIS and it didn't work for me.

This solution didn't work either.

Answer 1

Since you have mentioned that the user has already admin privileges, you only need to specify ContextType and your Domain.

PrincipalContext ctx = new PrincipalContext(ContextType.Domain, "yourdomain.com");