我想知道两部分代码之间是否有任何区别：
//1
public partial class MyPage : System.Web.UI.Page
{
public override void DataBind()
{
base.DataBind();
this.myTableGrid.SetupDataSource();
}
}
//2
public partial class MyPage : System.Web.UI.Page
{
public void Page_DataBind(object e, EventArgs e)
{
this.myTableGrid.SetupDataSource();
}
}
Essentially, they both accomplish the same task. Your Page_DataBind method will be called in base.DataBind() so it might save a teeny tiny (i.e. negligible) amount of cpu clicks as it doesn't have to call the method delegate.
One difference in example 2 is that you can call that method, without having to call DataBind() on the page.
This may prove useful if have a lot of controls on your page but only want to databind a few of them (as databinding can prove to be a costly operation, given that it makes heavy use of reflection and type casts).