How to hide content on certain pages and not others via a Master Page?

问题

Read this thread but didn't really answer my question and there were quite a few suggestions so not sure if they are on the right track: Master Page content filtering with respect to asp page

What I have is a site with 1 Master Page and in it is a global footer that all pages use. I want to eliminate the footer on only 1 page (i.e. the login page) but keep all the other master page content intact.

I know I could create a separate Master Page just for this login page but it seems overkill. Is there a way to put in some logic that if it's only this specific page that it would hide the footer and then show on every other page?

Thanks for any tips/suggestions.

Edit: There was already a Page Load sub in the code behind. All I had to add was - MasterPage_Footer.Visible = False on the If statement when users were not logged in and set it to True when they were logged in. Works like a charm. Thanks for all the suggestions.

回答1:

Expose a property on the MasterPage to allow content pages to override default behavior if needed.

In the MasterPage:

private bool showFooter = true;

public bool ShowFooter { get {return showFooter;} set {showFooter = value;} }

protected void Page_Load(object sender, EventArgs e)
{
    footerControl.Visible = showFooter;
}

Make sure content pages that need to access the property have the following line in the aspx:

<%@ MasterType TypeName="XXX" %>

and in the content pages code-behind:

protected void Page_Load(object sender, EventArgs e)
{
    Master.ShowFooter = false;
}

回答2:

In your MasterPage:

protected void Page_Load(object sender, EventArgs e)
{
   var page = HttpContext.Current.Handler as Page;
   FooterControl.Visible = HttpRequest.IsAuthenticated && !(page is LoginPage)
}

HttpContext.Handler Property
is (C# Reference)

来源：https://stackoverflow.com/questions/10302545/how-to-hide-content-on-certain-pages-and-not-others-via-a-master-page

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ASP.NET

master-pages