You are designing a Windows Forms application that allows users to search a product catalog and place orders. You have the following requirements:

Display a progress indicator while the application is searching the

catalog.

Ensure that users can cancel search operations.

You need to recommend an approach that meets the requirements. What should you recommend?

Question

You are designing a Windows Forms application that allows users to search a product catalog and place orders. You have the following requirements:

catalog.

You need to recommend an approach that meets the requirements. What should you recommend?

Accepted Answer

A. Use a BackgroundWorker component to perform the search.

Answer

B. Implement the search as a Windows Communication Foundation (WCF) service by using the

Answer

C. Implement the search as a duplex service.

Answer

D. Execute the search on the user interface thread.

You are designing a Windows Forms application that allows users to search a product catalog and place orders. You have the following requirements: - Display a progress indicator while the…