You can use an xml data source to display both hierarchical and tabular data , although it is typically used to display hierarchical xml data in read - only scenarios 尽管xml数据源通常用来在只读方案中显示层次结构的xml数据，但也可以使用它来同时显示分层数据和表格数据。
Control supports data - bound controls that display hierarchical data as well as controls that display tabular data , the data source control supports multiple types of data source view objects on its underlying xml data . the 控件支持显示分层数据的数据绑定控件和显示表格数据的控件，因此，数据源控件支持其基础xml数据中的多种类型的数据源视图对象。
Returning hierarchical data is a common use of recursive queries , for example : displaying employees in an organizational chart , or data in a bill of materials scenario in which a parent product has one or more components and those components may , in turn , have subcomponents or may be components of other parents 递归查询通常用于返回分层数据，例如：显示某个组织图中的雇员或物料清单方案（其中父级产品有一个或多个组件，而那些组件可能还有子组件，或者是其他父级产品的组件）中的数据。
