更改母版页，如果设备是移动在asp.net web表单应用程序 [英] Change master page if device is mobile in asp.net web form app

问题描述

当你创建一个新的asp.net项目我nvisual工作室2012年，加一个ASCX这个code：`//确定当前视图
            变种isMobile = WebFormsFriendlyUrlResolver.IsMobileView（新HttpContextWrapper（上下文））;
            CurrentView = isMobile？ 手机：桌面;

when you create a new asp.net project i nvisual studio 2012 it add an ascx with this code:` // Determine current view var isMobile = WebFormsFriendlyUrlResolver.IsMobileView(new HttpContextWrapper(Context)); CurrentView = isMobile ? "Mobile" : "Desktop";

        // Determine alternate view
        AlternateView = isMobile ? "Desktop" : "Mobile";

        // Create switch URL from the route, e.g. ~/__FriendlyUrls_SwitchView/Mobile?ReturnUrl=/Page
        var switchViewRouteName = "AspNet.FriendlyUrls.SwitchView";
        var switchViewRoute = RouteTable.Routes[switchViewRouteName];
        if (switchViewRoute == null)
        {
            // Friendly URLs is not enabled or the name of the swith view route is out of sync
            this.Visible = false;
            return;
        }
        var url = GetRouteUrl(switchViewRouteName, new { view = AlternateView });
        url += "?ReturnUrl=" + HttpUtility.UrlEncode(Request.RawUrl);
        SwitchUrl = url;`

我真的不uderstand它，它是如何工作的？这是什么奇怪的code？WebFormsFriendlyUrlResolver？ i'have现有的项目，我想知道是否有可能切换主页面，如果检测到移动浏览器

I really don't uderstand it, how it works? What is this strange code?WebFormsFriendlyUrlResolver? i'have an existing project and i want to know if it is possible to switch the master page if a mobile browser is detected

推荐答案

WebFormsFriendlyUrlResolver是一个辅助类获取路线关联。如果你想使友好的网址即www.yourdomain.com/myaccount.aspx可以显示为www.yourdomain.com/Account使用

WebFormsFriendlyUrlResolver is a helper class to fetch route association. used if you want to enable friendly urls i.e. www.yourdomain.com/myaccount.aspx can be shown as www.yourdomain.com/Account

您不需要使用这个（为您的特定问题），但它是asp.net的一个很酷的功能，并在RouteTables创建自定义路线变得容易

you dont need to use this (for your specific problem), however it is a cool feature of asp.net and made easy with creating custom routes in the RouteTables

<一个href=\"http://www.hanselman.com/blog/IntroducingASPNETFriendlyUrlsCleanerURLsEasierRoutingAndMobileViewsForASPNETWebForms.aspx\">this由Scott文章，帮助我理解了友好的网址

this article by Scott helped me understand friendly URLS

现在您的问题，为移动设备改变母版页，母版页只能在一个页面中的pre-init事件改变。我不知道的另一种方式，因为我相信这是为时已晚。

Now to your problem, change master page for a mobile device, master page can only be changed in pre-init event of a page. I dont know another means to inject a new master page after that as I believe it is too late

当你有很多的网页，这个钩<一个href=\"http://sharepoint.stackexchange.com/questions/21679/how-can-we-use-a-different-masterpage-for-annoymous-and-authenticated-users\">handler到HttpContext的
下面是一个伪code，需要细化你的需求。

when you have many pages, hook this handler to httpcontext below is a pseudo code that needs refining to your needs

void page_PreInit(object sender, EventArgs e)
    {
        Page p = this.Context.Handler as Page;
        if (p != null)
        {
            // set master page
            if(Request.Browser.IsMobileDevice){
              p.MasterPageFile = "~/MasterPages/mobile.master";
            }
            else{
               p.MasterPageFile = "~/MasterPages/normal.master";
            }

        }
    } 

一旦你想通这一点，确保你SO 一>其中提到建设母版页为移动设备

Once you have figured this, ensure you read this solution at SO which mentions building master pages for mobile devices

好运气

这篇关于更改母版页，如果设备是移动在asp.net web表单应用程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！