保存div与页面滚动条的位置
**//// summary2 /// 保存div与页面滚动条的位置3&nb
**////
2 /// 保存div与页面滚动条的位置
3 ///
9 /// DIV的ID数组
10 public static void RetainScrollPosition(string[] divId)
11 {
12
13 System.Web.UI.Page page=(Page)HttpContext.Current.Handler;
14
15 string saveScrollPosition = "";
16 string setScrollPosition = "";
17
18 string saveScrollPositionDiv = "";
19 string setScrollPositionDiv = "";
20
21 保存页面滚动条的状态#region 保存页面滚动条的状态
22 page.RegisterHiddenField("__SCROLLPOS_TOP","0");
23 page.RegisterHiddenField("__SCROLLPOS_LEFT","0");
24
25 saveScrollPosition = "document.forms[0].__SCROLLPOS_TOP.value = {0}.scrollTop;document.forms[0].__SCROLLPOS_LEFT.value = {0}.scrollLeft;";//}{0}.onscroll=saveScrollPosition;";
26 setScrollPosition = "{0}.scrollTop ='{1}';{0}.scrollLeft ='{2}';";//}{0}.onload=setScrollPosition;";
27
28 saveScrollPosition = string.Format(saveScrollPosition,"window.document.body");
29 setScrollPosition = string.Format(setScrollPosition,"window.document.body", page.Request.Form["__SCROLLPOS_TOP"],page.Request.Form["__SCROLLPOS_LEFT"]);
30 #endregion
31
32 保存divId的位置#region 保存divId的位置
33 for (int i = 0; i < divId.Length; i++)
34 {
35 page.RegisterHiddenField(divId[i].ToString() + "_TOP","0");
36 page.RegisterHiddenField(divId[i].ToString() + "_LEFT","0");
37
38 saveScrollPositionDiv = "";
39 setScrollPositionDiv += "{0}.scrollTop = {1};{0}.scrollLeft = {2};";
40
41 saveScrollPositionDiv = string.Format(saveScrollPositionDiv,"window.document.all('" + divId[i].ToString() + "')");
42 page.RegisterStartupScript("saveScroll" + divId[i].ToString(), saveScrollPositionDiv);
43
44 setScrollPositionDiv = string.Format(setScrollPositionDiv,"window.document.all('" + divId[i].ToString() + "')", page.Request.Form[divId[i].ToString() + "_TOP"],page.Request.Form[divId[i].ToString() + "_LEFT"]);
45 }
46 #endregion
47
48 注册客户端脚本#region 注册客户端脚本
49 saveScrollPosition = "";
50 page.RegisterStartupScript("saveScroll", string.Format(saveScrollPosition,"window.document.body"));
51
52 if(page.IsPostBack)
53 {
54 setScrollPosition = "";
55 page.RegisterStartupScript("setScroll", string.Format(setScrollPosition,"window.document.body"));
56 //page.RegisterStartupScript("setScrollDocument", string.Format(setScrollPosition,"window.document.body", page.Request.Form["__SCROLLPOS_TOP"],page.Request.Form["__SCROLLPOS_LEFT"]));
57 }
58 #endregion
59
60 }
本文作者:xiongeee 来源:http://www.cnblogs.com/xiongeee/
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