本文介绍了从客户端获取隐藏的字段值，并在ASP .Net中保留值代码的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
动态地我想得到div元素的高度。在客户端，我获得了价值，并已成功分配到隐藏字段。
Dynamically i want to get the height of the div element. At client side i am getting the value and has been assigned to hidden field successfully.
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="HomePage.aspx.cs" Inherits="HomePage_New" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Home Page</title>
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<link rel="stylesheet" href="Css/HomePageStyle.css" type="text/css" />
<script type="text/javascript" src="Script/jquery_min.js"></script>
<script type="text/javascript" src="JavaScript/DisableBackSpace.js"></script>
<script type="text/javascript" src="JavaScript/DisableMouseRightClick.js"></script>
<script type="text/javascript">
$(document).ready(function () {
var varHeight = $('#MainDiv').height();
$('#maincontentpageframe').height($('#MainDiv').height());
/*Set the value to Hidden Field*/
$("input[id=hfMainDiv]").val(varHeight);
/*alert($('#hfMainDiv').val());*/
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div class="header">
<div class="lefttext">
Welcome to ATM Claims
</div>
<div class="righttext">
<div>
<label id="lblLoginUserName" runat="server"></label> <p>|</p>
</div>
<div>
<a id="lnkHomePage" href="welcomepage.aspx" target="mainFrame">Home</a> <p>|</p>
</div>
<div>
<a id="lnkMyProf" href="myprofile.aspx" target="mainFrame">My profile</a> <p>|</p>
</div>
<div>
<a id="lnkChgPwd" href="ChangePassword.aspx" target="mainFrame">Change password</a> <p>|</p>
</div>
<div>
<a href="">Logout</a>
</div>
</div>
</div>
<table cellspacing="0" id="main">
<tr>
<td class="leftnav">
<div class="leftnavheader">
Menu</div>
<div class="menu">
<iframe src="MenuItem.aspx" frameborder="0" style="height: 91.5%; width: 100%;" name="menuFrame">
</iframe>
</div>
</td>
<td class="content">
<div class="MainFrame" id="MainDiv" runat="server">
<iframe src="WelcomePage.aspx" id="maincontentpageframe" style="width: 99.5%; height: 100%;"
frameborder="1" name="mainFrame" runat="server"></iframe>
</div>
<asp:HiddenField ID="hfMainDiv" runat="server" ClientIDMode="Static" Value="23" />
</td>
</tr>
</table>
<div class="footer">
<div class="footer_wrap">
© 2013 | All Rights Reserved.
</div>
</div>
</form>
</body>
</html>
In Code Behind，我正在尝试获取Page Load事件中的值，但价值一无所获。
In Code Behind, i am trying to get the value in Page Load event but value comes nothing.
public partial class HomePage_New : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
lblLoginUserName.InnerHtml = "";
Session["HomePageMainDivHeight"] = this.hfMainDiv.Value.ToString();
if(Session["UserID"] != null)
{
lblLoginUserName.InnerHtml = "Hi ! "+Session["UserID"].ToString().Trim();
}
}
}推荐答案
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