WPF application crashes if the source object of a data binding in a control is an element that is defined outside the name scope of the control.

在进行数据绑定时，如果数据源对象定义在控件命名空间之外时，WPF程序会崩溃。

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Just a few years ago, it was such a common insult in playgrounds and elsewhere that the Spastic Society dropped the term altogether, changing its name to Scope.

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The code name and scope of the project and other details of the effort were reported on Friday by the New York Times in an adaptation from a coming book.

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