You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You write the following code fragment. You need to implement the MyProject.AverageConverter class. What should you do?()
- A、 Implement the IValueConverter interface.
- B、 Implement the IMultiValueConverter interface.
- C、 Inherit from the TypeConverter class.
- D、 Apply the TypeConverterAttribute attribute.
正确答案:B
答案解析:有
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