asp.net小技巧：页面滚动位置保持

最新推荐文章于 2025-05-15 16:23:17 发布

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最新推荐文章于 2025-05-15 16:23:17 发布

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文章标签： javascript c# ViewUI

原文链接：http://www.cnblogs.com/jjstar/archive/2004/08/10/31919.html

博客介绍了常用的C#实现页面滚动位置保存的方法。包括替换<body>标签代码，根据请求判断滚动位置并写入相应代码，以及在<form>标签间添加隐藏输入框用于存储滚动位置。还给出了转载来源。

我常用下面的方法：
c#

step 1
replace the tag of <body> with the follewing codes:

<%
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;\">");
}
%>

step 2
add the follewing codes between <form> and </form>

step 1
replace the tag of <body> with the follewing codes:

<%
         If Not Request("__SCROLLPOS") Is Nothing then
         if Request("__SCROLLPOS") <> String.Empty Then
            Dim pos As Integer = CType(Request("__SCROLLPOS"), Integer)
            Response.Write("<body id=""theBody"" onscroll=""javascript:document.forms[0].__SCROLLPOS.value = theBody.scrollTop;"" onload=""javascript:theBody.scrollTop=" + pos.tostring + ";"">")
       end if
       else
            response.Write("<body id=""theBody"" onscroll=""javascript:document.forms[0].__SCROLLPOS.value =theBody.scrollTop;"">")

        end if
%>

step 2
add the follewing codes between <form> and </form>

转载于:https://www.cnblogs.com/jjstar/archive/2004/08/10/31919.html