You are working as an application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. Domain.com uses Visual Studio 2005 as an application platform. Domain.com consists of a Development department. You as the developer of Domain.com use a client computer named Certkiller -WS015 as developing collateral.
You were asked to use the BackgroungWorker component to do an asynchronous task.
What should you do to define the signature of the method that will contain the code to perform the asynchronous task?
A.
You should create a method that matches the ThreadStart delegate’s signature.
B.
You should create a method that matches the AsyncCallback delegate’s signature.
C.
You should create a method that matches the ParameterizedThreadStart delegate’s signature.
D.
You should create a method that matches the DoWorkEventHandler delegate’s signature.
Explanation:
You should create a method that matches the DoWorkEventHandler delegate’s signature. The BackgroungWorker allows you to do jobs in a background thread quite then the interface thread.Incorrect Answers:
A: The ThreadStart allows you to define a method for executing codes in separate threads. You must in this case avoid creating a method that matches the ThreadStart signature.
B: The AsyncCallback allows you to define a method that represents an asynchronous operation’s callback. You must in this case avoid creating a method that matches the AsyncCallback signature.
C: The ParameterizedThreadStart allows you to define a method that represents an asynchronous operation’s callback. You must in this case avoid creating a method that matches the AsyncCallback signature.