依赖项注入方式的关键是，在查询数据时，要注入DAO将查询的实体的Class并定义泛型类型。
The key to the dependency-injection approach is that you query data by injecting the Class of the entity that the DAO will be querying, along with defining the generic type.
有三种类型的工作项用来存储三种类型的人员查询结果。
There are three types of work items used to store the three types of staff query results.
您可以修改任何查询，通过向查询添加条件可集中查找某一产品区域、一个迭代或为要查找的工作项类型定义的另一个字段。
You can modify any query by adding criteria to focus on a product area, an iteration, or another field that is defined for the types of work items that you want to find.
例如，您可以添加一个查询，该查询列出指派给您的所有活动用户情景、问题或其他类型的工作项。
For example, you can add a query that lists all active User Stories, Issues, or other types of work items that are assigned to you.
因此，上载工作项查询的任务依赖于上载工作项类型的任务。
Therefore, the task to upload work item queries depends on the task to upload the types of work items.
查询表达式经常使用匿名类型，而这些类型只能使用对象初始值设定项进行初始化。
Query expressions make frequent use of anonymous types, which can only be initialized with an object initializer.
可以使用工作项字段跟踪工作项类型的数据、定义查询的条件以及设计报表。
You use work item fields to track data for a work item type, to define the criteria for queries, and to design reports.
可以使用工作项字段跟踪工作项类型的数据、定义查询的条件以及设计报表。
You use work item fields to track data for a work item type, to define the criteria for queries, and to design reports.
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