N层架构在哪里加载网格数据？

Question

In most managing application, you have to load a lot of data into datagrid not only for insert, update... but also for reports or just as lists. In these datagrid, you can have data from different entities and that's why a "GetAll" from each entities is a bad approach.

So what's the best way to load this kind of reports without having to load every data from every entities?

Because i uses Entity Framework, i can make a query to load only what i want, or even make a stored procedure, but in this case what's the best way to put this kind of loading into a n-tier application? Which layer? A single class for all datagrid's data with one method for each datagrid? Or something else?

Answer 1

您可能对使用开源N层实体框架感兴趣，该框架在服务器端使用Entity Framework，并生成用于基于WCF构建n层体系结构的整个基础结构，其中包括在客户端包含类似EF的API。