midWCF
What is duplex communication in WCF?
Updated May 6, 2026
Short answer
Duplex communication allows two-way messaging between client and service.
Deep explanation
Both client and server can send messages independently using callbacks.
Real-world example
Chat applications using WCF.
Common mistakes
- Not handling callback exceptions.
Follow-up questions
- What is callback contract?
- Is it synchronous?