如何设置在asp.net中动态的meta标签？ [英] How to set dynamic meta tags in asp.net?
问题描述
我想给Facebook标签添加到页面。他们必须为不同的用户不同，所以我尽量dynamicaly添加。我已经code是这样的：
I'm trying to add facebook tags to a page. They have to be different for different users, so I try to add them dynamicaly. I have code like this:
<meta name="og:title" content="<%= GetSocialTitle() %>"/>
但是在源页它不揭示，看起来像：
But in source page it doesn't uncovers and looks like:
<meta name="og:title" content="<%= GetSocialTitle() %>"/>
而不是
<meta name="og:title" content="some title">
我试过设置在元code后面
I've tried to set meta in code behind
HtmlMeta tag = new HtmlMeta();
tag.Name = "og:title";
tag.Content = GetSocialTitle();
Page.Header.Controls.Add(tag);
但它抛出异常Controls集合不能修改，因为该控件包含code块（即＆LT;％...％>）。这真的包含了，我不能代替他们。那么，如何才能解决这个问题？
But it throws exception "The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)". It really contains and I can't replace them. So how can I fix this?
推荐答案
如果你想使用落后删除OG code：标题meta标签，并把=服务器的头标记
If you want to use code behind remove that og:title meta tag and put runat="server" in head tag.
在标记：
<head runat="server">
...
</head>
和背后code：
HtmlMeta tag = new HtmlMeta();
tag.Name = "og:title";
tag.Content = GetSocialTitle();
Page.Header.Controls.Add(tag);
如果你不想使用code后面，去除头标记RUNAT服务器：
If you don't want to use code behind, remove runat server from head tag :
<head>
<meta name="og:title" content="<%= GetSocialTitle() %>"/>
...
</head>
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