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70-511 · Question #153
70-511 Question #153: Real Exam Question with Answer & Explanation
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Question
You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You write the following code fragment. < TextBox Text="{Binding Path=StringMember} " / > You need to ensure that the StringMember property of the data-bound object is updated immediately when the user types in the TextBox control. Which binding expression should you use?
Options
- A{Binding Path=StringMember, Mode=Two way}
- B{Binding Path=StringMember, NotifyOnSourceUpdated=True}
- C{Binding Path=StringMember, NotifyOnTargetUpdated=True}
- D{Binding Path=StringMember, UpdateSourceTrigger=PropertyChanged}
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