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DirectorySearcher Example 

The following code examples show how to search for all users in a domain. It contains some basic required tasks such as using a C# try-catch or Visual Basic .NET try-catch-finally statement to catch errors and error handling for all the errors that can be thrown by the DirectorySearcher object.

    // 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();
catch (InvalidOperationException)
    InvalidOperationException InvOpEx = new InvalidOperationException(); 
catch (NotSupportedException)
    NotSupportedException NotSuppEx = new NotSupportedException();

See Also