如何分析ASP.NETPostback的WebPage生命周期

<%@PageLanguage="C#"AutoEventWireup="true"CodeFile="Default.
aspx.cs"Inherits="_Default"%> 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<htmlxmlnshtmlxmlns="http://www.w3.org/1999/xhtml"> 
<headrunatheadrunat="server"> 
 
 
 
<formidformid="form1"runat="server"> 
 
<asp:Labelrunatasp:Labelrunat="server"ID="LabelMessage"ForeColor="red"> 

很简单，定义了3个Button，分别注册了他们的两个Event：Click和Command。3个Button的Command Event Hander是一样的：Button_Command，通过指定的CommandArgument来让Event Handler判断到底是哪个Button触发了Command  Event。

下面是Code Behind：

usingSystem;  
usingSystem.Data;  
usingSystem.Configuration;  
usingSystem.Web;  
usingSystem.Web.Security;  
usingSystem.Web.UI;  
usingSystem.Web.UI.WebControls;  
usingSystem.Web.UI.WebControls.WebParts;  
usingSystem.Web.UI.HtmlControls;  
 
publicpartialclass_Default:System.Web.UI.Page  
{  
 
protectedvoidPage_Load(objectsender,EventArgse)  
{  
 
}  
protectedvoidButton1_Click(objectsender,EventArgse)  
{  
stringstringmessage=string.Format("The{0}eventof{1}isfired","Click","Button1");  
this.LabelMessage.Text=message;  
}  
protectedvoidButton2_Click(objectsender,EventArgse)  
{  
stringstringmessage=string.Format("The{0}eventof{1}isfired","Click","Button2");  
this.LabelMessage.Text=message;  
}  
protectedvoidButton3_Click(objectsender,EventArgse)  
{  
stringstringmessage=string.Format("The{0}eventof{1}isfired","Click","Button3");  
this.LabelMessage.Text=message;  
}  
 
protectedvoidButton_Command(objectsender,CommandEventArgse)  
{  
stringstringmessage=string.Format("The{0}eventof{1}isfired",
"Command",e.CommandArgument);  
this.LabelMessage.Text+=";"+message;  
}  
}  

关于如何分析ASP.NET Postback的Web Page生命周期就分享到这里了，希望以上内容可以对大家有一定的帮助，可以学到更多知识。如果觉得文章不错，可以把它分享出去让更多的人看到。