PreviousPage跨页面传值

页面1：Prev_FirstPage.aspx

<% @ Page Language = " C# "   %>

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

< script  runat ="server" >  
    public String UserName
    {
        get {  return   this .txtName.Text; }
    }
    protected  void  Button1_Click(object sender, EventArgs e)
    {
        Label1.Text  =   " Postback from self. Your Name is: "   +  txtName.Text;
    } 
</ script >

< html  xmlns ="http://www.w3.org/1999/xHTML" >
< head  runat ="server" >
     < meta  content ="text/JScript"  http-equiv ="content-script-type"   />
     < title > First Page </ title >
</ head >
< body >
     < form  id ="form1"  runat ="server" >
         < div >
             < h3 >
                The Frist Page </ h3 >
            Your Name:
             < asp:TextBox  ID ="txtName"  runat ="server"   />
             < asp:Label  ID ="Label1"  runat ="server"  EnableViewState ="False"   />< br  />
             < br  />
             < asp:Button  ID ="Button1"  runat ="server"  Text ="Postback to Same Page"
                     OnClick ="Button1_Click"   />< br  />
             < br  />
             < asp:Button  ID ="Button2"  runat ="server"  Text ="Postback to Second Page"
                     PostBackUrl ="Prev_SecondPage.aspx"   />< br  />
         </ div >
     </ form >
</ body >
</ html >

页面2：Prev_SecondPage.aspx

<% @ Page Language = " C# "   %>

<% @ PreviousPageType VirtualPath = " Prev_FirstPage.aspx "   %>
<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >

< script  runat ="server" >  
    protected  void  Page_Load(object sender, EventArgs e)
    {
         this .Label1.Text  =   " Your Name is : "   +  PreviousPage.UserName;
    } 
</ script >

< html  xmlns ="http://www.w3.org/1999/xHTML" >
< head  runat ="server" >
     < title > Second Page </ title >
</ head >
< body >
     < form  id ="form1"  runat ="server" >
         < div >
             < h1 >
                This is the Second Page </ h1 >
             < p >
                 < asp:Label  ID ="Label1"  runat ="server" ></ asp:Label ></ p >
         </ div >
     </ form >
</ body >
</ html >