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Active Directory connection Failure

I need a small help. I am new to active directory. I want to connect my active directory with c#. Here is the sample code i have wrote.

public void GetConnection()

var username = "xxxx";
var domain = "xxxx";
var password = "xxxx";
var path = "LDAP://xxxx/CN=xx";

DirectoryEntry de = new DirectoryEntry(sDomain + "/" + sDefaultOU, sUsername, sServicePassword, AuthenticationTypes.ServerBind);
DirectorySearcher ds = new DirectorySearcher(de);

ds.Filter = "(&(objectClass=Users))";

var sr = ds.FindAll();

if (sr != null)

MessageBox.Show("success");

else

MessageBox.Show("error");


}


There is a COMException was unhandled near

COMException was unhandled

var sr = ds.FindAll();


The error is:

An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in System.DirectoryServices.dll

Additional information: Unspecified error

Can I have some help in fixing the issue? Thanks in advance

DirectoryEntry

sDomain

sDefaultOU

1 Answer
1

Step 1

static DirectoryEntry createDirectoryEntry()

// create and return new LDAP connection with desired settings
//This is for ssl secure port for non secure port just make 636 as 389 and //change Authentication as None
DirectoryEntry ldapConnection = new DirectoryEntry("LDAP://mysystem.domain.com:636","Admin","Domain123",AuthenticationTypes.SecureSocketsLayer);

return ldapConnection;



**

**
In the main function u need to write below function

DirectorySearcher _searcher = null;

SearchResult result_user = null;
DirectoryEntry de = createDirectoryEntry();
object o = de.SchemaEntry;
_searcher = new DirectorySearcher(de, "(&(objectClass=user)(SAMAccountName=" + "user1" + "))");
if (_searcher != null)

result_user = _searcher.FindOne();
de.Close();



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