你可能感興趣的試題

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You create a game where a ball drops from the top to the bottom of a window.
You plan to create a single animation for the game.
You need to ensure that the animation shows the ball bounce.
What should you do?（）

A. Use the KeySpline property of a SplineDoubleKeyFrame object.
B. Use the EasingFunction property of an EasingDoubleKeyFrame object.
C. Use the DecelerationRatio and AutoReverse properties of a StoryBoard object.
D. Use the DecelerationRatio and AccelerationRatio properties of a StoryBoard object.

單項選擇題

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. The
application contains a form named frmMain that contains a button named btnSave.
You create a ProgressBar control named saveProgress. Initially, saveProgress is not displayed on frmMain.
When a user clicks btnSave, you have the following requirements:
saveProgress is slightly visible after 0.2 seconds
saveProgress is fully visible after 1 second
You need to declare the corresponding storyboard.
You write the following code fragment. (Line numbers are included for reference only.)

Which code fragment should you insert at line 02 to complete the declaration?（）

A.
B.
C.
D.