asp.net 页面间传值与跳转的区别

HiddenField hfOrderID = new HiddenField(); 
HiddenField hfPayMoney = new HiddenField(); 
if (Page.PreviousPage != null) 
{ 
try 
{　　 
　　　　// 
//查找母版页 , 
MasterPage masterPage = (MasterPage)Page.PreviousPage.Controls[0]; 
// 
//查找容器 
ContentPlaceHolder contentPlaceHolder = (ContentPlaceHolder)masterPage.FindControl("ContentPlaceHolder3"); 
System.Web.UI.UserControl userControl = (System.Web.UI.UserControl)contentPlaceHolder.FindControl("MyOrder1"); 
// 
//查找到对应的数据传送HiddenField 
hfOrderID = (HiddenField)userControl.FindControl("hfOrderID"); 
hfPayMoney = (HiddenField)userControl.FindControl("hfPayMoney"); 
　　　 // 
//获取传入的订单号 
string strOrderID = hfOrderID.Value; 
string strPayMoney = hfPayMoney.value; 
　　} 
}