Wednesday, August 15, 2012

Microsoft 70-506 training materials

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1.You are developing a Silverlight 4 application.
The application defines the following three event handlers. (Line numbers are included for reference
only.)
01 private void HandleCheck(object sender, RoutedEventArgs e)
02 {
03 MessageBox.Show("Checked")
04 }
05
06 private void HandleUnchecked(object sender, RoutedEventArgs e)
07 {
08 MessageBox.Show("Unchecked")
09 }
10
11 private void HandleThirdState(object sender, RoutedEventArgs e)
12 {
13 MessageBox.Show("Indeterminate")
14 }
You need to allow a check box that can be selected, cleared, or set to Indeterminate. You also need to
ensure that the event handlers are invoked when the user changes the state of the control.
Which XAML fragment should you use?
A. IsChecked="True" Checked="HandleCheck"
Indeterminate="HandleUnchecked" Unchecked="HandleUnchecked" />
B. IsThreeState="True" Checked="HandleCheck"
Indeterminate="HandleThirdState" Unchecked="HandleUnchecked" />
C. IsHitTestVisible="True" Checked="HandleCheck"
Indeterminate="HandleThirdState" Unchecked="HandleUnchecked" />
D. IsEnabled="True" Checked="HandleCheck"
Indeterminate="HandleUnchecked" Unchecked="HandleUnchecked" />
Answer: B

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