ASP.NET: Having common Page title in master page with each page adding page-specific title?

问题

My master page looks like:

<head runat="server">
    <title>
        <asp:ContentPlaceHolder ID="PageTitlePlaceHolder" runat="server" />
    </title>

Content pages look like:

<asp:Content ID="TitleContent1"
     ContentPlaceHolderID="PageTitlePlaceHolder" runat="Server">
    My Page
</asp:Content>

This works by placing the content page specific title on the page ("My Page" in this example). Now I want to add a global prefix to the title in my master page for the site name. So I want:

<head runat="server">
    <title>
        Example.com:
        <asp:ContentPlaceHolder ID="PageTitlePlaceHolder" runat="server" />
    </title>

However, when I do this content pages are still rendered without "Example.com" in the tile, it's like it's ignored.

Why is this happening and how can I achieve this?

回答1:

Try this in the code behind of the MasterPage:

void MasterPage_PreRender(object sender, EventArgs e)
{
    Page.Title = "Example.com - " + Page.Title;
}

回答2:

Remove the title tag from the master page and use the code Martin provided. Now in your content pages set the title in the Page tag at the top of the file like so:

<%@ Page ... Title="Contact" %>

回答3:

The work around I found most acceptable is to use multiple ContentPlaceHolder controls.

<head runat="server">
    <title>
        <asp:ContentPlaceHolder ID="cphMasterTitle" runat="server">Example.com: </asp:ContentPlaceHolder>
        <asp:ContentPlaceHolder ID="cphSubtitle" runat="server" />
    </title>
</head>

Note that any other content inside <title>, including whitespace, is stripped away. Any spacing between the ContentPlaceHolder content needs to be done inside the controls.

I've also used <asp:Literal runat="server">Example.com: </asp:Literal> when I don't want to expose a placeholder to the content pages.

回答4:

remove the "runat="server"" but i'm not sure,try it

<head>
    <title>
        Example.com:
        <asp:ContentPlaceHolder ID="PageTitlePlaceHolder" runat="server" />
    </title>

回答5:

Two options. one is remove runat=server from <head> (jefferydu)

Two is using the Page.Title as string. (Martin)

I prefer to use a object I wrote somewhere that add also Title for facebook, description for search engines, etc for any page I used. This object stores the page title in three strings- one before, one is page title, one after.

回答6:

in the master Page, Put

    <title>websitename.com -<%: Page.Title.ToString() %> </title>

where websitename.com is the domain name of the website.

and then in Each Content page , put a title.

来源：https://stackoverflow.com/questions/3571618/asp-net-having-common-page-title-in-master-page-with-each-page-adding-page-spec

标签

ASP.NET

master-pages

contentplaceholder

page-title

html-title