网页在第一次运行时，它动态产生了一个铵钮，此称为第一个铵钮，当用户用mouse点击这个铵钮时，会动态产生另一个铵钮，此称为第二个铵钮，当用户再用mouse点击第二个铵钮时，系统将处理另外的事情。此博文是实再第二个铵钮的Click事件。首先看看效果：

 

.aspx:

<%

@ Page Language

=

"

C#

"

 AutoEventWireup

=

"

true

"

 CodeFile

=

"

Default.aspx.cs

"

 Inherits

=

"

_Default

"

 

%>

<!

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"

>

<

html 

xmlns

="http://www.w3.org/1999/xhtml"

>

<

head 

runat

="server"

>

    

<

title

></

title

>

</

head

>

<

body

>

    

<

form 

id

="form1"

 runat

="server"

>   

        

<

asp:ScriptManager 

ID

="ScriptManager1"

 runat

="server"

></

asp:ScriptManager

>

        

<

asp:UpdatePanel 

ID

="UpdatePanel1"

 runat

="server"

>

            

<

ContentTemplate

>

                

<

fieldset

>

                    

<

legend

>网页运行时动态产生的Button

</

legend

>

                    

<

asp:PlaceHolder 

ID

="PlaceHolder1"

 runat

="server"

></

asp:PlaceHolder

>

                

</

fieldset

>

                

<

fieldset

>

                    

<

legend

>用Mouse点击第一个Button产生的Button

</

legend

>

                    

<

asp:PlaceHolder 

ID

="PlaceHolder2"

 runat

="server"

></

asp:PlaceHolder

>

                

</

fieldset

>

            

</

ContentTemplate

>

        

</

asp:UpdatePanel

>   

    

</

form

>

</

body

>

</

html

>

 

.apsx.cs:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Insus.NET;

public 

partial 

class _Default : System.Web.UI.Page

{

    

protected 

void Page_Load(

object sender, EventArgs e)

    {

        Button Button1 = 

new Button();

        Button1.Text = 

"

I was the first button

";

        Button1.Click += Button1_Click;

        

this.PlaceHolder1.Controls.Add(Button1);

        

if (ViewState[

"

Click

"] != 

null && (

bool)ViewState[

"

Click

"])

            GenerateButtonControl();

    }

    

private 

void Button1_Click(

object sender, EventArgs e)

    {

        

if (ViewState[

"

Click

"] == 

null)

        {

            ViewState[

"

Click

"] = 

true;

            GenerateButtonControl();

        }

    }

    

private 

void GenerateButtonControl()

    {

        Button Button2 = 

new Button();

        Button2.Text = 

"

I was the second button

";

        Button2.Click += 

new EventHandler(Button2_Click);

        

this.PlaceHolder2.Controls.Add(Button2);

    }

    

private 

void Button2_Click(

object sender, EventArgs e)

    {

        InsusJavascriptUtility objJs = 

new InsusJavascriptUtility();

        objJs.JsAlert(

"

Hi, Good evening!

");     

    }

}