NETFramework

Authentication in WCF

How WCF authenticates callers via clientCredentialType options across transport and message security, including Windows, Certificate, UserName, and IssuedToken.

Consuming WCF Services

How .NET client applications discover, generate proxies for, and call WCF services reliably, including channel lifecycle and fault handling.

Data Contracts

How WCF uses [DataContract] and [DataMember] to define the exact wire shape of types exchanged between services and clients.

Duplex Communication in WCF

Covers how WCF services push data back to clients using callback contracts, duplex-capable bindings, and session-aware instance management.

Endpoints and Behaviors

How WCF endpoints expose service operations and how behaviors attach cross-cutting runtime policies to services, endpoints, and operations.

Faults and Exception Handling

Learn how WCF translates .NET exceptions into SOAP faults, how to design typed FaultContracts, and how to centralize fault handling with IErrorHandler.

Hosting WCF Services

How WCF services get activated and run, from self-hosted console applications to IIS and Windows Activation Services.

Migrating WCF to Modern Alternatives

Practical strategies for moving existing WCF services off .NET Framework onto CoreWCF, gRPC, or ASP.NET Core Web API.

Operation Contracts

How [OperationContract] defines individual callable methods on a WCF service, including one-way calls, faults, and async patterns.

RESTful Services with WCF

Shows how to expose plain REST/JSON endpoints from a WCF service using webHttpBinding, WebGet/WebInvoke, and UriTemplate routing.

Securing WCF Endpoints

Practical, end-to-end guidance for locking down a WCF service endpoint — binding choice, behaviors, authorization, and operational hardening.

Self-Hosting vs IIS Hosting

A direct comparison of running WCF services in your own process versus letting IIS manage the process lifecycle.

Service Contracts

How the ServiceContract and OperationContract attributes define the public interface of a WCF service, and the rules that govern them.

Transport vs Message Security

A deep comparison of how WCF's transport-level and message-level security mechanisms actually protect data, and the trade-offs between them.

WCF Architecture: Address, Binding, Contract

How every WCF endpoint is built from three core elements — Address, Binding, and Contract — and how they fit into the layered WCF architecture.

WCF Bindings Explained

A tour of WCF's built-in bindings and how each one shapes the transport, encoding, and security of a service contract.

WCF Certificates

How X.509 certificates are configured, stored, and used in WCF for service authentication, client authentication, and message encryption.

WCF Configuration Basics

How WCF services are wired together through web.config/app.config, and the essential Address-Binding-Contract structure behind every endpoint.

WCF Data Services

Introduces WCF Data Services (formerly ADO.NET Data Services) for automatically exposing an Entity Framework model as a queryable OData feed.

WCF Instancing and Concurrency

Understand the InstanceContextMode and ConcurrencyMode settings that control how many service instances WCF creates and how many threads can touch each one at…

WCF Interview Questions

Commonly asked WCF interview questions covering ABC fundamentals, bindings, contracts, instancing, and troubleshooting, with explained answers.

WCF Message Exchange Patterns

Explains the three message exchange patterns (MEPs) — One-Way, Request-Reply, and Duplex — that define how messages flow between a WCF client and service.

WCF Quick Reference

A condensed cheat sheet of WCF bindings, contract attributes, hosting options, and configuration essentials for day-to-day lookup.

WCF Reliable Messaging

Learn how WCF's WS-ReliableMessaging support guarantees ordered, exactly-once (or at-least-once) message delivery over unreliable transports like HTTP.