一个自定义控件，里面有一个DIV,其ID值为DivID,并且它有滚动条，想在页面刷新后保存其滚动条位置?

webfactory 2004-12-28 02:26:47

现在找来找去，发现GetPostBackEventReference这个方法，但实在不知该如何写？

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rickjelly2004 2004-12-28

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pageload

call RetainScrollPosition()

div加一个ID就是DIV1

webfactory 2004-12-28

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新手，能介绍的详细点吗？

yt_net 2004-12-28

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用智能导航
<%
if (Request["__SCROLLPOS"] != null &&
Request["__SCROLLPOS"] != String.Empty) {
int pos = Convert.ToInt32 (Request["__SCROLLPOS"]);
Response.Write ("<body id=\"theBody\" " +
"onscroll=\"javascript:document.forms[0].__SCROLLPOS.value = " +
"theBody.scrollTop;\" " +
"onload=\"javascript:theBody.scrollTop=" + pos + ";\">");
}
else {
Response.Write ("<body id=\"theBody\" " +
"onscroll=\"javascript:document.forms[0].__SCROLLPOS.value =" +
"theBody.scrollTop;\">");
}
%>

rickjelly2004 2004-12-28

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Private Function RetainScrollPosition()
Dim saveScrollPosition As New StringBuilder
Dim setScrollPosition As New StringBuilder
RegisterHiddenField("__SCROLLPOS", "0")
saveScrollPosition.Append("<script language='javascript'>")
saveScrollPosition.Append("function saveScrollPosition() {")
saveScrollPosition.Append(" document.forms[0].__SCROLLPOS.value = document.Form1.all['Div1'].scrollTop;")
saveScrollPosition.Append("}")
saveScrollPosition.Append("document.Form1.all['Div1'].onscroll=saveScrollPosition;")
saveScrollPosition.Append("</script>")
RegisterStartupScript("saveScroll", saveScrollPosition.ToString())
If (Page.IsPostBack) Then
setScrollPosition.Append("<script language='javascript'>")
setScrollPosition.Append("function setScrollPosition() {")
setScrollPosition.Append("document.Form1.all['Div1'].scrollTop = " & Request("__SCROLLPOS") & ";")
setScrollPosition.Append("}")
setScrollPosition.Append("MyBody.onload=setScrollPosition;")
setScrollPosition.Append("</script>")
RegisterStartupScript("setScroll", setScrollPosition.ToString())
End If
End Function