使用URL路由，当用户控件asp.net多的Page_Load事件

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问题描述

我最近成立了一个ASP.net网站（不使用MVC.net）使用URL路由（在code详见下文） - 使用用户控件时，该网站上（即我已经创建了一个菜单中的用户控制持有菜单信息），该控件的URL时有多个变量传递过来将火两次Page_Load事件。

I've recently set up an ASP.net site (not using MVC.net) to use URL Routing (more on the code below) - when using user controls on the site (i.e I've created a "menu" user control to hold menu information) the page_load event for that control will fire twice when URLs have more than one variable passed over.

即的

i.e.

页面名称/ VAR1：将仅在Page_Load事件一旦

pageName/VAR1 : will only fire the page_load event once.

的，而的

页面名称/ VAR1 / VAR2：将触发Page_Load事件两次

pageName/VAR1/VAR2 : will fire the page_load event twice.

*多种额外的增值分销商仍然将仅在Page_Load事件两次*。

*Multiple extra VARs added on the end will still only fire the page_load event twice*.

下面是从文件code snippits，第一个是的MapPageRoute，坐落在Global.asax：

Below are the code snippits from the files, the first is the MapPageRoute, located in the Global.asax :

// Register a route for the Example page, with the NodeID and also the Test123 variables allowed.
// This demonstrates how to have several items linked with the page routes.
    routes.MapPageRoute(
        "Multiple Data Example",                    // Route name
        "Example/{NodeID}/{test123}/{variable}",     // Route URL - note the NodeID bit
        "~/Example.aspx",                            // Web page to handle route
        true,                                        // Check for physical access
        new System.Web.Routing.RouteValueDictionary
        {
            { "NodeID", "1" },        // Default Node ID
            { "test123", "1" },       // Default addtional variable value
            { "variable", "hello"}    // Default test variable value
        }
    );

接下来就是我已下令在菜单项的网页的方式，这是UL标签内的列表项：

Next is the way I've directed to the page in the menu item, this is a list item within a UL tag :

<li class="TopMenu_ListItem"><a href="<%= Page.GetRouteUrl("Multiple Data Example", new System.Web.Routing.RouteValueDictionary { { "NodeID", "4855" }, { "test123", "2" } }) %>">Example 2</a></li>

和最后的大干快上一个页面加载击中多次控制：

And finally the control that gets hit multiple times on a page load :

// For use when the page loads.
    protected void Page_Load(object sender, EventArgs e)
    {
        // Handle the routing variables.
        // this handles the route data value for NodeID - if the page was reached using URL Routing.
        if (Page.RouteData.Values["NodeID"] != null)
        {
            nodeID = Page.RouteData.Values["NodeID"] as string;
        };

        // this handles the route data value for Test123 - if the page was reached using URL Routing.
        if (Page.RouteData.Values["Test123"] != null)
        {
            ExampleOutput2.Text = "I am the output of the third variable : " + Page.RouteData.Values["Test123"] as string;
        };

        // this handles the route data value for variable - if the page was reached using URL Routing.
        if (Page.RouteData.Values["variable"] != null)
        {
            ExampleOutput3.Text = "I say " + Page.RouteData.Values["variable"] as string;
        };
    }

的注意，那个时候我只是击中页面，它使用的默认值项目时，重载不会发生。的

任何帮助或指导，任何人都可以提供将非常AP preciated！

Any help or guidance that anyone can offer would be very much appreciated!

编辑：用户控件只添加到页面一次。我通过把一个断点在Page_Load事件中测试了装载顺序 - 添加额外的路由时，只命中两次

EDIT : The User Control is only added to the page once. I've tested the load sequence by putting a breakpoint in the page_load event - it only hits twice when the extra routes are added.

EDIT2：再次感谢那些谁已经帮助了迄今为止 - 我仍然无法找到的双重负荷的原因 - 没有任何人有任何建议。

EDIT2 : Thanks again to those who've helped out so far - I'm still having trouble finding the cause of the double load - does anyone else have any more suggestions?

EDIT3 /答：下面的回答解释了如何解决这个问题 - 基本上是从最初的站点创建/删除包含任何../到JavaScript文件的引用。我希望这可以帮助其他人谁都有这个问题！

在预先感谢

保罗·赫特森

当用户控件asp

使用URL路由，当用户控件asp.net多的Page_Load事件

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