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這是我的情況。我有一個網頁表單頁面，當整個頁面每次點擊一個控件時都會滾動到頂部，所以我正在嘗試將更新面板應用到我的頁面，這讓人討厭。從更新面板刷新整個頁面
取決於各個更新面板的內容是否處於正確的狀態，提交按鈕可以或不可以點擊。
當點擊提交按鈕時，它可能會影響頁面上的任何控件。
我知道我可以使用更新面板的<triggers>標記元素來做一些操作，但我不希望必須使用自己的觸發器將所有內容放到更新面板中，我寧願提交按鈕只是重新加載整個頁面。
爲了簡單起見，我把一個示例項目放在一起來表示我的頁面。它有一個「重置」按鈕，代表「提交」按鈕。
母版頁：
<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site.master.cs" Inherits="WebApplication1.SiteMaster" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head runat="server">
<title></title>
<link href="~/Styles/Site.css" rel="stylesheet" type="text/css" />
<asp:ContentPlaceHolder ID="HeadContent" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form runat="server">
<asp:ScriptManager ID="ScriptManager" runat="server" EnablePartialRendering="true" />
<div class="page">
<div class="header">
<div class="title">
<h1>
My ASP.NET Application
</h1>
</div>
<div class="loginDisplay">
<asp:LoginView ID="HeadLoginView" runat="server" EnableViewState="false">
<AnonymousTemplate>
[ <a href="~/Account/Login.aspx" ID="HeadLoginStatus" runat="server">Log In</a> ]
</AnonymousTemplate>
<LoggedInTemplate>
Welcome <span class="bold"><asp:LoginName ID="HeadLoginName" runat="server" /></span>!
[ <asp:LoginStatus ID="HeadLoginStatus" runat="server" LogoutAction="Redirect" LogoutText="Log Out" LogoutPageUrl="~/"/> ]
</LoggedInTemplate>
</asp:LoginView>
</div>
<div class="clear hideSkiplink">
<asp:Menu ID="NavigationMenu" runat="server" CssClass="menu" EnableViewState="false" IncludeStyleBlock="false" Orientation="Horizontal">
<Items>
<asp:MenuItem NavigateUrl="~/Default.aspx" Text="Home"/>
<asp:MenuItem NavigateUrl="~/About.aspx" Text="About"/>
</Items>
</asp:Menu>
</div>
</div>
<div class="main">
<asp:ContentPlaceHolder ID="MainContent" runat="server"/>
</div>
<div class="clear">
</div>
</div>
<div class="footer">
</div>
</form>
</body>
</html>
默認頁面：
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:Label runat=server Text="This lable represents things not in update panels" ID="label1"></asp:Label>
<asp:UpdatePanel ID="UpdatePanel1" runat=server>
<ContentTemplate>
<table>
<tr>
<td><asp:Button ID="button1" runat="server" OnClick="Button1_click" Text="Button 1" /></td>
<td><asp:TextBox ID="textBox1" runat="server" Text="StartText" Enabled="false" /></td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanel2" runat=server>
<ContentTemplate>
<table>
<tr>
<td><asp:Button ID="button2" runat="server" OnClick="Button2_click" Text="Button 2" /></td>
<td><asp:TextBox ID="textBox2" runat="server" Text="StartText" Enabled="false" /></td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanelReset" runat=server>
<ContentTemplate>
<asp:Button ID="reset" runat="server" OnClick="Reset_click" Text="reset" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="button1" EventName="click" />
<asp:AsyncPostBackTrigger ControlID="button2" EventName="click" />
</Triggers>
</asp:UpdatePanel>
</asp:Content>
後面的代碼
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml.Linq;
namespace WebApplication1
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_click(object sender, EventArgs e)
{
textBox1.Enabled = !textBox1.Enabled;
reset.Enabled = !textBox1.Enabled && !textBox2.Enabled;
}
protected void Button2_click(object sender, EventArgs e)
{
textBox2.Enabled = !textBox2.Enabled;
reset.Enabled = !textBox1.Enabled && !textBox2.Enabled;
}
protected void Reset_click(object sender, EventArgs e)
{
textBox1.Text = "StartText";
textBox2.Text = "StartText";
label1.Text = "reset button clicked";
}
}
}