通过代码隐藏或标记数据源填充 gridview? [英] populate gridview via code-behind or markup DataSource?

问题描述

这两个选项是:使用 aspx 文件中的参数或通过代码隐藏进行绑定.哪个更好，为什么?

The 2 options are: use parameters in aspx files or bind through code-behind. Which is better and why?

推荐答案

我推荐使用 ObjectDataSource，因为它可以带来更简洁的架构，并且更容易处理事件，例如排序和分页.否则，您的控件必须专门处理此类事件，我觉得这令人头疼.我总是创建一个业务层，并让我的 Get() 方法使用如下所示的签名.我的这种设计模型来自这本书，我认为这是一个很好的网络表单资源:

I recommend using ObjectDataSource because it leads to a cleaner architecture and is much easier to deal with events, e.g., sorting and paging. Otherwise, your control must specifically handle such events, which I find to be a pain in the neck. I always create a business tier and have my Get() methods use signatures like those shown below. My model for this kind of design comes from this book, which I think is a great Web Forms resource:

http://www.amazon.com/ASP-NET-2-0-Website-Programming-Programmer/dp/0764584642

在 app_code/业务层:

public class ProductRepository
{
  public List<Product> GetAll(/* params here */ string sortOrder, string orderBy, int startRowIndex, int maximumRows)
  {
      // call data access tier for Product entities
  }

  public int GetAllCount(/* params here */ )
  {
      // call data access tier for count of Product entities
  }
}

在网络表单中:

<asp:ObjectDataSource ID="objProduct" runat="server"
  TypeName="MyNameSpace.BLL.ProductRepository"
  SelectMethod="GetAll"
  EnablePaging="true" 
  SortParameterName="sortOrder"
  SelectCountMethod="GetAllCount"  />

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