InvalidOperationException from DirectorySearcher
In .NET 2.0, a variety of new search operations are included in the DirectorySearcher class. However, not all of these options work with every single version of ADSI on each Windows platform. For example, Windows XP as of Service Pack 2, and all previous operating systems, does not support extended distinguished name (DN) searches (see Chapter 5).
Trying to use an unsupported search feature will result in this exception with the stack trace pointing to the DoSearchPrefs method. Unfortunately, the error message does not explain that the option was unsupported on our platform, so we are often left scratching our heads. Now we know!
A future version of the .NET Framework may provide a more informative error message here. Additionally, future versions of the ADSI that are included with Windows service packs may introduce these features to down-level clients.
Part I: Fundamentals
Introduction to LDAP and Active Directory
- Introduction to LDAP and Active Directory
- A Brief History of Directory Services
- Definition of LDAP
- Definition of Active Directory
- Definition of ADAM
- LDAP Basics
- Summary
Introduction to .NET Directory Services Programming
- Introduction to .NET Directory Services Programming
- .NET Directory Services Programming Landscape
- Native Directory Services Programming Landscape
- System.DirectoryServices Overview
- System.DirectoryServices.ActiveDirectory Overview
- System.DirectoryServices.Protocols Overview
- Selecting the Right Technology
- Summary
Binding and CRUD Operations with DirectoryEntry
- Binding and CRUD Operations with DirectoryEntry
- Property and Method Overview
- Binding to the Directory
- Directory CRUD Operations
- Summary
Searching with the DirectorySearcher
- Searching with the DirectorySearcher
- LDAP Searching Overview
- DirectorySearcher Overview
- The Basics of Searching
- Building LDAP Filters
- Controlling the Content of Search Results
- Executing the Query and Enumerating Results
- Returning Many Results with Paged Searches
- Sorting Search Results
- Summary
Advanced LDAP Searches
- Advanced LDAP Searches
- Administrative Limits Governing Active Directory and ADAM
- Understanding Searching Timeouts
- Optimizing Search Performance
- Searching the Global Catalog
- Chasing Referrals
- Virtual List View Searches
- Searching for Deleted Objects
- Directory Synchronization Queries
- Using Attribute Scope Query
- Extended DN Queries
- Reading Security Descriptors with Security Masks
- Asynchronous Searches
- Summary
Reading and Writing LDAP Attributes
- Reading and Writing LDAP Attributes
- Basics of Reading Attribute Values
- Collection Class Usage
- Understanding the ADSI Property Cache
- LDAP Data Types in .NET
- ADSI Schema Mapping Mechanism
- .NET Attribute Value Conversion
- Standard Data Types
- Binary Data Conversion
- COM Interop Data Types
- Syntactic versus Semantic Conversion
- Dealing with Attributes with Many Values
- Basics of Writing Attribute Values
- Writing COM Interop Types
- Summary
Active Directory and ADAM Schema
- Active Directory and ADAM Schema
- Schema Extension Best Practices
- Choosing an Object Class
- Choosing Attribute Syntaxes
- Modeling One-to-Many and Many-to-Many Relationships
- Search Flags and Indexing
- Techniques for Extending the Schema
- Discovering Schema Information at Runtime
- Summary
Security in Directory Services Programming
- Security in Directory Services Programming
- Binding and Delegation
- Directory Object Permissions in Active Directory and ADAM
- Code Access Security
- Summary
Introduction to the ActiveDirectory Namespace
- Introduction to the ActiveDirectory Namespace
- Working with the DirectoryContext Class
- Locating Domain Controllers
- Understanding the Active Directory RPC APIs
- Useful Shortcuts for Developers
- Summary
Part II: Practical Applications
User Management
- User Management
- Finding Users
- Creating Users
- Managing User Account Features
- Managing Passwords for Active Directory Users
- Managing Passwords for ADAM Users
- Determining User Group Membership in Active Directory and ADAM
- Summary
Group Management
- Group Management
- Creating Groups in Active Directory and ADAM
- Manipulating Group Membership
- Expanding Group Membership
- Primary Group Membership
- Foreign Security Principals
- Summary
Authentication
- Authentication
- Authentication Using SDS
- Authentication Using SDS.P
- Authentication Using SSPI
- Discovering the Cause of Authentication Failures
- Summary
Part III: Appendixes
Appendix A. Three Approaches to COM Interop with ADSI
- Appendix A. Three Approaches to COM Interop with ADSI
- The Standard Method
- The Reflection Method
- Handcrafted COM Interop Declarations
- Summary
Appendix B. LDAP Tools for Programmers
- Appendix B. LDAP Tools for Programmers
- LDP
- ADSI Edit
- Active Directory Users and Computers
- LDIFDE
- ADFind/ADMod
- BeaverTail LDAP Browser
- Softerra LDAP Browser
- Summary
Appendix C. Troubleshooting and Help
- Appendix C. Troubleshooting and Help
- Error 0x8007203A: "The server is not operational."
- Error 0x8007052E: "Login Failure: unknown user name or bad password."
- Error 0x80072020: "An operations error occurred."
- Error 0x80072030: "There is no such object on the server."
- Error 0x8007202F: A constraint violation occurred.
- Error 0x80072035: The server is unwilling to process the request.
- Error 0x80070005: General access denied error.
- InvalidOperationException from DirectorySearcher
- Summary
Index
EAN: 2147483647
Pages: 165
