CODEWITHSUNDEEP
c#.netc#-4.0active-directoryiprincipal
Cocoa Dev
Cocoa Dev

Reputation: 9561

Authenticate against ActiveDirectory

I did a little Googling and I came accross this promising code

System.DirectoryServices.AccountManagement.PrincipalContext pc = new System.DirectoryServices.AccountManagement.PrincipalContext(ContextType.Domain, "YOURDOMAIN")
// validate the credentials 
bool validatedOnDomain = pc.ValidateCredentials(userName, tb.Text.ToString());

userName is initialized as the Windows login name. It's also a string tb.Text.ToString() is the textbox that is being used for typing the password

Updated code and it's working. Thanks all

MSDN says that PrincipalContext can use two arguments

Upvotes: 2

Views: 2986

Answers (2)

Mahesh Weerakoon
Mahesh Weerakoon

Reputation: 64

Try to figure out this code.. This is working perfectly in my project.

public bool  ValidateUser(string varDomain, string varUserName, string varPwd)
    {
        Boolean isValidUser;
        using (PrincipalContext pc = new PrincipalContext(ContextType.Domain, varDomain))
        {
            isValidUser = pc.ValidateCredentials(varUserName, varPwd);
        }
        return isValidUser;

    }

Upvotes: 5

Klaus Byskov Pedersen
Klaus Byskov Pedersen

Reputation: 121067

type used in a using statement must be implicitly convertible to 'System.IDisposable'

Means that you need to change your code to:

PrincipalContext pc = new PrincipalContext(ContextType.Domain, "YOURDOMAIN");

// validate the credentials 
bool validatedOnDomain = pc.ValidateCredentials(userName, tb.Text.ToString());

Basically it's just telling you that you cannot use a PrincipalContext in a using statement, because PrincipalContext does not implement the interface called IDisposable.

EDIT As marc_s has pointed out below, the PrincipalContext you are using is not the right one. It seems to live in your own namespace. You should be using that from System.DirectoryServices.AccountManagement.

Upvotes: 3

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