1
/// <summary>
2
/// 功能：在页面post时保存屏幕滚动状态；
3 /// 直接在Page_Load中加入Zeda.CNE.Common.RetainScrollPosition();
4 /// 不能加在if(!Page.IsPostBack){}内;
5 /// 加入的两个隐藏域为__SCROLLPOS_TOP和__SCROLLPOS_LEFT
6
/// </summary>
7
public
static
void RetainScrollPosition()
8
{
9
10 System.Web.UI.Page page=(Page)HttpContext.Current.Handler;
11
12 page.RegisterHiddenField("__SCROLLPOS_TOP","0");
13 page.RegisterHiddenField("__SCROLLPOS_LEFT","0");
14
15 string saveScrollPosition = "<script language='javascript'>function saveScrollPosition() {{document.forms[0].__SCROLLPOS_TOP.value = {0}.scrollTop;document.forms[0].__SCROLLPOS_LEFT.value = {0}.scrollLeft ;}}{0}.onscroll=saveScrollPosition;</script>";
16 string setScrollPosition = "<script language='javascript'>function setScrollPosition() {{{0}.scrollTop ='{1}';{0}.scrollLeft ='{2}' }}{0}.onload=setScrollPosition;</script>";
17
18 page.RegisterStartupScript("saveScroll", string.Format(saveScrollPosition,"window.document.body"));
19
20 if (page.IsPostBack)
21
{
22
23 page.RegisterStartupScript("setScroll", string.Format(setScrollPosition,"window.document.body", page.Request.Form["__SCROLLPOS_TOP"],page.Request.Form["__SCROLLPOS_LEFT"]));
24
}
25 }
/// <summary>2
/// 功能：在页面post时保存屏幕滚动状态；3
/// 直接在Page_Load中加入Zeda.CNE.Common.RetainScrollPosition();4
/// 不能加在if(!Page.IsPostBack){}内;5
/// 加入的两个隐藏域为__SCROLLPOS_TOP和__SCROLLPOS_LEFT6
/// </summary>
7
public
static
void RetainScrollPosition()
8
{
9
10
System.Web.UI.Page page=(Page)HttpContext.Current.Handler;11
12
page.RegisterHiddenField("__SCROLLPOS_TOP","0");13
page.RegisterHiddenField("__SCROLLPOS_LEFT","0");14
15
string saveScrollPosition = "<script language='javascript'>function saveScrollPosition() {{document.forms[0].__SCROLLPOS_TOP.value = {0}.scrollTop;document.forms[0].__SCROLLPOS_LEFT.value = {0}.scrollLeft ;}}{0}.onscroll=saveScrollPosition;</script>";16
string setScrollPosition = "<script language='javascript'>function setScrollPosition() {{{0}.scrollTop ='{1}';{0}.scrollLeft ='{2}' }}{0}.onload=setScrollPosition;</script>";17
18
page.RegisterStartupScript("saveScroll", string.Format(saveScrollPosition,"window.document.body"));19
20
if (page.IsPostBack)21
{22
23
page.RegisterStartupScript("setScroll", string.Format(setScrollPosition,"window.document.body", page.Request.Form["__SCROLLPOS_TOP"],page.Request.Form["__SCROLLPOS_LEFT"]));24
}25
}
本文转自高海东博客园博客，原文链接：http://www.cnblogs.com/ghd258/archive/2005/11/07/270444.html，如需转载请自行联系原作者
