Esempio di DirectorySearcher

Negli esempi di codice riportati di seguito viene illustrato come cercare tutti gli utenti in un dominio. Sono riportate alcune attività di base necessarie come l'utilizzo di un'istruzione try-catch di C# o try-catch-finally di Visual Basic .NET per rilevare gli errori e per gestire tutti gli errori che possono essere generati dall'oggetto DirectorySearcher.

Try
   ' Bind to the users container.
    Dim entry As New 
          DirectoryEntry("LDAP://CN=users,DC=fabrikam,DC=com")

    ' Create a DirectorySearcher object.
    Dim mySearcher As New DirectorySearcher(entry)

    ' Create a SearchResultCollection object to hold a collection
    ' of SearchResults returned by the FindAll method.
    Dim result As SearchResultCollection = mySearcher.FindAll()
   
    ' Create an object to hold a single result from the 
    ' result collection.
    Dim resEnt1 As SearchResult

    ' Get search results. For more information, 
    ' see Getting Search Results.
    ' 
    ' This sample uses Try...Catch to catch errors.
    ' Create an Exception object. For more information, 
    ' see System.Exception.

Catch Exception1 As System.Runtime.InteropServices.COMException
    Console.WriteLine(Exception1.Message)

Catch Exception2 As InvalidOperationException
    Console.WriteLine(Exception2.Message)

Catch Exception3 As NotSupportedException
    Console.WriteLine(Exception3.Message)

End Try   

try
{
    // Bind to the users container.
    DirectoryEntry entry = new DirectoryEntry("LDAP://CN=users,DC=fabrikam,DC=com");
    // Create a DirectorySearcher object.
    DirectorySearcher mySearcher = new DirectorySearcher(entry);
    // Create a SearchResultCollection object to hold a collection of SearchResults
    // returned by the FindAll method.
    SearchResultCollection result = mySearcher.FindAll();
    // Get search results. For more information, see Getting Search Results.
    // ...
    // This sample uses Try...Catch to catch errors.
    // Create an Exception object. For more information, see System.Exception.
}
catch (System.Runtime.InteropServices.COMException)
{
    System.Runtime.InteropServices.COMException exception = new System.Runtime.InteropServices.COMException();
    Console.WriteLine(exception);
}
catch (InvalidOperationException)
{
    InvalidOperationException InvOpEx = new InvalidOperationException(); 
    Console.WriteLine(InvOpEx.Message);
}
catch (NotSupportedException)
{
    NotSupportedException NotSuppEx = new NotSupportedException();
    Console.WriteLine(NotSuppEx.Message);
}

Vedere anche

Riferimenti

System.DirectoryServices
DirectorySearcher

Concetti

Ricerca nella directory

Altre risorse

Directory Synchronization Search Technology Sample

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