我正在尝试做一个简单的页面来进行一些计算并在页面上很好地显示它。我希望隐藏计算，所以我决定在服务器上的代码隐藏中完成所有数学运算。但是当我点击“计算”按钮时，我不需要整个页面重新刷新。所以我正在尝试使用UpdatePanel来更改表格内容（页眉和页脚应该保持不变）。
但是每当我点击“计算”/“重置”按钮时，整个页面就会闪烁，就像它正在进行完整的回发一样。
我首先尝试在2个表周围有2个UpdatePanel，它们实际上有值要更新（每个都有它们的AsyncPostBackTriggers）和任何UpdatePanel之外的按钮，但是整个页面的结果都相同。所以我想我会把它简化为当前的一个UpdatePanel页面。
我也尝试将代码从microsoft示例复制到我的页面中（下面的代码仍在页面上，而且只有我的页眉和页脚），他们的UpdatePanel也会导致整个页面进行回发（{ {3}}）。 我已经检查了我的web.config并设置为使用AJAX。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Pricing.aspx.cs" Inherits="Sales.Pricing" EnableEventValidation="false" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<%@ Register TagPrefix="uc1" TagName="ServicesHeader" Src="/ClientServices/userControls/ServicesHeader.ascx" %>
<%@ Register TagPrefix="uc2" TagName="ServicesFooter" Src="/ClientServices/userControls/ServicesFooter.ascx" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<%--<%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI" TagPrefix="asp" %>--%>
<!DOCTYPE HTML>
<html>
<head id="HEAD1" runat="server">
<link id="linkStyles" href="/ClientServices/Style.css" type="text/css" rel="stylesheet" />
<title>Pricing</title>
<meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR" />
<meta content="C#" name="CODE_LANGUAGE" />
<meta content="JavaScript" name="vs_defaultClientScript" />
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema" />
</head>
<body topmargin="0" leftmargin="0" rightmargin="0" bottommargin="0" onunload="javascript: closeWindow()">
<uc1:ServicesHeader ID="ServicesHeader1" runat="server"></uc1:ServicesHeader>
<form id="form2" runat="server">
<asp:ScriptManager EnablePartialRendering="true" ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="false">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="resetButton" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="calculateButton" EventName="Click" />
</Triggers>
<ContentTemplate>
<table cellspacing="0" cellpadding="0" width="100%" border="0">
<tr class="tablePageHeading">
<td class="tablePageHeading" colspan="3">
<table cellspacing="0" cellpadding="0" width="100%" border="0">
<tr class="tablePageHeading">
<td class="cellPageHeading">
<b> Pricing</b>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td>
<table width="100%">
<tr>
<th></th>
<th></th>
<th style="background-color:Black; color:White; font-weight: bold; font-size: 10pt; font-family: arial; height: 25px;">Typical Bundles</th>
</tr>
<tr>
<td>
<table class="pre tablePricingInput" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td>Contract Term:</td>
<td><asp:TextBox id="contractTerm" title="Contract Term" type="text" onkeypress='return event.charCode >= 48 && event.charCode <= 57'
value="3" size="3" runat="server"/></td>
</tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr>
<td>Bundled Hours/Mo:</td>
<td><asp:TextBox id="bundledHoursPerMonth" title="Bundled Hours/Mo" type="text" onkeypress='return event.charCode >= 48 && event.charCode <= 57'
value="8" size="3" runat="server"/></td>
</tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr>
<td>App Dev Bundled Hours:</td>
<td><asp:TextBox id="appDevBundledHours" title="App Dev Bundled Hours" type="text" onkeypress='return event.charCode >= 48 && event.charCode <= 57'
value="0" size="3" runat="server"/></td>
</tr>
<tr>
<td>Annual Tuning Cycles:</td>
<td><asp:TextBox id="annualTuningCycles" title="Annual Tuning Cycles" type="text" onkeypress='return event.charCode >= 48 && event.charCode <= 57'
value="0" size="3" runat="server"/></td>
</tr>
</table>
</td>
<td>
<table class="pre tablePricing" cellspacing="0" cellpadding="0" width="100%" border="0" runat="server">
<col style="width:33%" span="3" />
<tr class ="tableTitle2">
<th>Other Nomenclature</th>
<th>Nomenclature</th>
<th>Ala Cart (Annual)</th>
</tr>
<tr class="evenRow">
<td>Incident Management</td>
<td>24/7 Hotline</td>
<td><%=hlBase.ToString("C2")%></td>
</tr>
<tr>
<td>Patch Management</td>
<td>Prevenative</td>
<td><%=prevenativeBase.ToString("C2")%></td>
</tr>
<tr class="evenRow">
<td>Monitoring</td>
<td>Alerting</td>
<td><%=monitoringBase.ToString("C2")%></td>
</tr>
<tr>
<td>First Call (Other)</td>
<td>First Call (Other)</td>
<td>Included</td>
</tr>
<tr class="evenRow">
<td>MACs</td>
<td>MACs</td>
<td><%=macValue.ToString("C2")%></td>
</tr>
<tr>
<td>Optimization Support</td>
<td>Forward Planning</td>
<td><%=planningBase.ToString("C2")%></td>
</tr>
<tr class="evenRow">
<td>Assigned TAM</td>
<td>Assigned TAM</td>
<td><%=tamBase.ToString("C2")%></td>
</tr>
<tr>
<td>New App Dev</td>
<td>Peak Demand Staffing</td>
<td><%if (appDevValue == 0){%>$ -<%}else{%><%=appDevValue.ToString("C2")%><%}%></td>
</tr>
<tr class="evenRow">
<td>Tuning Cycles</td>
<td>Tuning Cycles</td>
<td><%if (tuningValue == 0) {%>$ -<%} else {%><%=tuningValue.ToString("C2")%><%}%></td>
</tr>
</table>
</td>
<td>
<table class="pre tableBundles" cellspacing="0" cellpadding="0" width="100%" border="0">
<col style="width:20%; border: 1px solid black;" span="5" />
<tr class ="tableTitle2">
<th>App Support</th>
<th>Bridge (operational)</th>
<th>Bridge (MAC)</th>
<th>TT</th>
<th>ASR</th>
</tr>
<tr class="evenRow">
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
<tr class="evenRow">
<td></td>
<td>X</td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr class="evenRow">
<td></td>
<td></td>
<td>X</td>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
<tr class="evenRow">
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td>X</td>
<td>X</td>
</tr>
<tr class="evenRow">
<td></td>
<td></td>
<td></td>
<td></td>
<td>X</td>
</tr>
</table>
</td>
</tr>
<tr>
<td align="center">
<asp:Button ID="resetButton" onClick="Reset" runat="server" Text="Reset" CssClass="input-button"/>
<asp:Button ID="calculateButton" onClick="Calculate" runat="server" Text="Calculate" CssClass="input-button"/>
</td>
<td>
<table class="pre tablePricing" cellspacing="0" cellpadding="0" width="100%" border="0">
<col style="width:33%; border: 1px solid black;" span="3" />
<tr>
<td>Low Complexity</td>
<td>Low Complexity</td>
<td></td>
</tr>
<tr class="evenRow">
<td align="right" style="font-size:10px; color:Gray;">Other Markup Low</td>
<td></td>
<td></td>
</tr>
<tr>
<td>Medium Complexity</td>
<td>Medium Complexity</td>
<td></td>
</tr>
<tr class="evenRow" style="font-size:10px; color:Gray;">
<td align="right">Other Markup Medium</td>
<td></td>
<td></td>
</tr>
<tr>
<td>High Complexity</td>
<td>High Complexity</td>
<td></td>
</tr>
<tr class="evenRow" style="font-size:10px; color:Gray;">
<td align="right">Other Markup High</td>
<td></td>
<td></td>
</tr>
</table>
</td>
<td>
<table class="pre tableBundles" cellspacing="0" cellpadding="0" width="100%" border="0" runat="server">
<col style="width:20%; border: 1px solid black;" span="5" />
<tr>
<td><%=appLowComplexityValue.ToString("C2")%></td>
<td><%=bridgeLowComplexityValue.ToString("C2")%></td>
<td><%=macLowComplexityValue.ToString("C2")%></td>
<td><%=ttLowComplexityValue.ToString("C2")%></td>
<td><%=asrLowComplexityValue.ToString("C2")%></td>
</tr>
<tr class="evenRow" style="font-size:10px; color:Gray;">
<td><%=appLowOtherMarkupValue.ToString("C2")%></td>
<td><%=bridgeLowOtherMarkupValue.ToString("C2")%></td>
<td><%=macLowOtherMarkupValue.ToString("C2")%></td>
<td><%=ttLowOtherMarkupValue.ToString("C2")%></td>
<td><%=asrLowOtherMarkupValue.ToString("C2")%></td>
</tr>
<tr style="font-weight:bolder;">
<td><%=appMediumComplexityValue.ToString("C2")%></td>
<td><%=bridgeMediumComplexityValue.ToString("C2")%></td>
<td><%=macMediumComplexityValue.ToString("C2")%></td>
<td><%=ttMediumComplexityValue.ToString("C2")%></td>
<td><%=asrMediumComplexityValue.ToString("C2")%></td>
</tr>
<tr class="evenRow" style="font-size:10px; color:Gray;">
<td><%=appMediumOtherMarkupValue.ToString("C2")%></td>
<td><%=bridgeMediumOtherMarkupValue.ToString("C2")%></td>
<td><%=macMediumOtherMarkupValue.ToString("C2")%></td>
<td><%=ttMediumOtherMarkupValue.ToString("C2")%></td>
<td><%=asrMediumOtherMarkupValue.ToString("C2")%></td>
</tr>
<tr>
<td><%=appHighComplexityValue.ToString("C2")%></td>
<td><%=bridgeHighComplexityValue.ToString("C2")%></td>
<td><%=macHighComplexityValue.ToString("C2")%></td>
<td><%=ttHighComplexityValue.ToString("C2")%></td>
<td><%=asrHighComplexityValue.ToString("C2")%></td>
</tr>
<tr class="evenRow" style="font-size:10px; color:Gray;">
<td><%=appHighOtherMakrupValue.ToString("C2")%></td>
<td><%=bridgeHighOtherMakrupValue.ToString("C2")%></td>
<td><%=macHighOtherMakrupValue.ToString("C2")%></td>
<td><%=ttHighOtherMakrupValue.ToString("C2")%></td>
<td><%=asrHighOtherMakrupValue.ToString("C2")%></td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
</form>
<uc2:ServicesFooter ID="ServicesFooter1" runat="server"></uc2:ServicesFooter>
</body>
</html>
代码隐藏
protected void Calculate(object sender, EventArgs e)
{
if(!Int32.TryParse(contractTerm.Text, out contractTermInt))
{
//Error
}
if (!Int32.TryParse(bundledHoursPerMonth.Text, out bundledHoursPerMonthInt))
{
//Error
}
if (!Int32.TryParse(appDevBundledHours.Text, out appDevBundledHoursInt))
{
//Error
}
if (!Int32.TryParse(annualTuningCycles.Text, out annualTuningCyclesInt))
{
//Error
}
UpdateValues();
}
protected void Reset(object sender, EventArgs e)
{
contractTermInt = 3;
bundledHoursPerMonthInt = 8;
appDevBundledHoursInt = 0;
annualTuningCyclesInt = 0;
contractTerm.Text = "3";
bundledHoursPerMonth.Text = "8";
appDevBundledHours.Text = "0";
annualTuningCycles.Text = "0";
UpdateValues();
}
UpdateValues（）只计算要在网页上显示的______Value变量。
这是我尝试将页面简化为Microsoft示例（它仍然将整个页面闪烁，就像它是一个完整的回发一样）：
<%@ Page Language="C#" CodeFile="Pricing.aspx.cs" Inherits="Sales.Pricing" %>
<%@ Register TagPrefix="uc1" TagName="ServicesHeader" Src="/ClientServices/userControls/ServicesHeader.ascx" %>
<%@ Register TagPrefix="uc2" TagName="ServicesFooter" Src="/ClientServices/userControls/ServicesFooter.ascx" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head />
<body>
<uc1:ServicesHeader ID="ServicesHeader1" runat="server"></uc1:ServicesHeader>
<form id="form2" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<fieldset>
<legend>UpdatePanel</legend>
<asp:Label ID="Label1" runat="server" Text="Panel created."></asp:Label><br />
</fieldset>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" />
</Triggers>
</asp:UpdatePanel>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" /></div>
</form>
<uc2:ServicesFooter ID="ServicesFooter1" runat="server"></uc2:ServicesFooter>
</body>
</html>
代码隐藏
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = "Refreshed at " + DateTime.Now.ToString();
}
答案 0 :(得分：0)
使用此
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="resetButton" />
<asp:AsyncPostBackTrigger ControlID="calculateButton" />
</Triggers>
取代
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="false">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="resetButton" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="calculateButton" EventName="Click" />
</Triggers>