When implemented, gets the position of the data item as displayed in a control.
实作时,取得系结至控制项之资料项目的索引。
This property specifies the path of the data item that is displayed in the control.
此属性指定控件中显示的数据项的路径。
This property specifies the path of the data item that is displayed in the control.
此属性指定控件中显示的数据项的路径。
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