Microsoft
70-518 · Question #207
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…
The correct answer is A. Use a BackgroundWorker component to perform the search. See the full explanation below for the reasoning.
Question
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?
Options
- AUse a BackgroundWorker component to perform the search.
- BExecute the search on the user interface thread.
- CImplement the search as a duplex service.
- DImplement the search as a Windows Communication Foundation (WCF) service by using the
How the community answered
(32 responses)- A81% (26)
- B3% (1)
- C13% (4)
- D3% (1)
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