ASP. NET 2.0 data Tutorial: access a typed dataset through The BLL class

In the first section of this tutorial, we provide an example of using a typed dataset directly. However, after we add the BLL class, the presentation layer can work through BLL. In the example of AllProducts. aspx in Section 1 of this tutorial, ProductsTableAdapter is used to bind the product list to the GridView. The Code is as follows:

 
 

  
  
ProductsTableAdapter productsAdapter = new ProductsTableAdapter();  
  
  
GridView1.DataSource = productsAdapter.GetProducts();  
  
  
GridView1.DataBind(); 
 
 

To use the new BLL class, all we need to do is simply modify the first line of code. Replace ProductsTableAdapter with a ProductBLL object:

 
 

  
  
ProductsBLL productLogic = new ProductsBLL();  
  
  
GridView1.DataSource = productLogic.GetProducts();  
  
  
GridView1.DataBind(); 
 
 

The BLL class can also be clearly accessed by using ObjectDataSource, just like a typed dataset ). We will discuss ObjectDataSource in detail in the next tutorial.

 

Figure 3: product list displayed in the GridView

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