Oli*_*ver 8 updatepanel asp.net-ajax scriptmanager
我已通过网络阅读但未找到解决以下问题的方法.我有这个示例页面(_ScriptManager.aspx),其中a ScriptManager,an UpdatePanel,a 在视图之间MultiView有两个Views和两个LinkButtons两个切换.第二个视图包含一些我想为(_ScriptManager.js)加载JavaScript文件的功能.
由于我不知道用户是否会访问视图2我不想为每个请求静态包含javascript文件.我只想在需要时加载它.所以我需要在异步回发期间包含脚本文件,这是我用ScriptManager.RegisterClientScriptInclude的.痛苦是:它不起作用.脚本包含在某种程度上不在客户端上执行,因此不能使用内部的javascript函数.更糟糕的是,我注册的脚本块ScriptManager.RegisterStartupScript在这种情况下不会被执行!这一切都非常恼人.有趣的是,包含脚本和脚本块确实通过异步回发(Fiddler是我的朋友:-))发送到客户端,并且还加载了脚本文件.但那时javascript似乎打破了......
有没有人有线索或知道报告的错误？
_ScriptManager.aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="_ScriptManager.aspx.cs" Inherits="Frontend.Web._Tests.ScriptManagerTest" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
<script src="http://ajax.microsoft.com/ajax/jQuery/jquery-1.3.2.min.js"></script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager runat="server" ID="scm"></asp:ScriptManager>
<asp:Label runat="server" ID="lbOut">Outside of UpdatePanel</asp:Label>
<div style="border: solid 1px red;">
<asp:UpdatePanel runat="server" ID="up" UpdateMode="Conditional">
<ContentTemplate>
<div>
<asp:LinkButton runat="server" ID="btnFirst">Show view 1</asp:LinkButton>
<asp:LinkButton runat="server" ID="btnSecond">Show view 2</asp:LinkButton>
</div>
<div>
<asp:MultiView runat="server" ID="mv">
<asp:View runat="server" ID="vw1">First view - static content</asp:View>
<asp:View runat="server" ID="vw2">
Second view - dynamically loaded content (between dashes):
<div>#<span id="divDyn"></span>#</div>
</asp:View>
</asp:MultiView>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
_ScriptManager.js(这里我只是在id = divDyn的span中添加一些动态内容):
function dynamic() {
alert('dynamic');
$('#divDyn').text('Dynamic!');
}
_ScriptManager.aspx.cs代码隐藏:
public partial class ScriptManagerTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
btnFirst.Click += delegate { mv.SetActiveView(vw1); };
btnSecond.Click += delegate { mv.SetActiveView(vw2); };
if (!IsPostBack)
{
// Test 1: does not work
mv.SetActiveView(vw1);
// Test 2: works, because required script is loaded on initial page request
//mv.SetActiveView(vw2);
}
}
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (mv.GetActiveView() == vw2)
{
// Not calling the RegisterClientScriptInclude
// makes the alert work in both cases, but this is
// what it's all about: including script only when
// needed!
ScriptManager.RegisterClientScriptInclude(
Page, Page.GetType(), "include-js",
ResolveClientUrl("~/ScriptManager.js"));
ScriptManager.RegisterStartupScript(
this, GetType(), "call-dynamic",
"alert('hi there'); dynamic();", true);
}
}
}
Oli*_*ver 10
好吧,这是破碎的:在调查问题的两个2h会话之后,尝试使用ScriptManager的所有可能性,尝试使用jQuery而最后编写这个示例(因为真实世界设置总是更复杂),我现在发现这篇简短的博文解决了我的问题 - 在js文件中添加了一行:
_ScriptManager.js:
function dynamic() {
alert('dynamic');
$('#divDyn').text('Dynamic!');
}
// notify that the script has been loaded <-- new!
if (typeof (Sys) !== 'undefined') Sys.Application.notifyScriptLoaded();
好吧,也许这对任何其他人都有用......
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