描述如何检索与控件的特定行绑定的对象。

Describes how to retrieve an object bound to a particular row of the control.

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与原始版本相比，只有一行绑定定义不同，新版本删除了field属性。

Only one line of the binding definition is different — the field attribute has been removed from the original version.

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如果之前没有提供这个绑定，那么开发人员 必须输入 粗体显示的代码行。

The line in bold is what developers would have to type if you did not provide this binding.

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