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70-511 · Question #179
70-511 Question #179: Real Exam Question with Answer & Explanation
The correct answer is C. Insert the following code at line 15.. See the full explanation below for the reasoning.
Question
You are developing a Windows Presentation Foundation (WPF) application with the following class. (Line numbers are included for reference only.) The UI is not being updated when the Data property is set. You need to ensure that the DisplayData class correctly updates the UI when the Data property is set. What should you do?
Exhibit
Options
- AInsert the following code at line 15.
- BInsert the following code at line 17.
- CInsert the following code at line 15.
- Dinsert the following line at line 17.
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