Introduction - If you have any usage issues, please Google them yourself
The project is a three-tier structure GridView divided into DAL, BLL, Model and GridView
Default.aspx show is data binding and display, Back.aspx add test data page, including two versions of C# and vb.net.
I, as fans of a program, the program of deep feeling that learning is: easy entry, advanced hard! (Begin to say to the question) there are many scholars in the entry for the three-tier architecture confused, not knowing how to achieve the three-tier architecture, and now I have to provide details of a simple example to illustrate the realization of the three-tier architecture, primarily with the GridView combine to explain and implement paging .
Finally, under the layers of said reference relationship:
1) DAL referenced Model
2) BLL references DAL, Model
3) Model no references
4) GridView references BLL, Model
Clear and simple structure, ideal for learning the three-tier GridView and friends!