如何确定从母版页显示哪个子页面？

Question

I'm writing code on the master page, and I need to know which child (content) page is being displayed. How can I do this programmatically?

Answer 1

I use this:

string pageName = this.ContentPlaceHolder1.Page.GetType().FullName;

It retuns the class name in this format "ASP.default_aspx", but I find that easy to parse for most purposes.

Hope that helps!

Answer 2

It's better to let the ContentPage notify the MasterPage . That's why the ContentPage has a Master Property and MasterPage does not have Child property. Best pratice in this is to define a property or method on the MasterPage and use this through the Master property of the ContentPage .

If you use this technique it's best to explicitly specify the classname for the MasterPage. This makes to use the MasterPage in the ContentPage.

Example:

//Page_Load
MyMaster m = (MyMaster)this.Master;

m.TellMasterWhoIAm(this);

Hope this helps.

Answer 3

This sounds like a bad idea to start with. The idea of the master is that it shouldn't care what page is there as this is all common code for each page.

Answer 4

I have had a reason to check the child page in the master page.

I have all my menu options on my master page and they need to be disabled if certain system settings are not set up.

If they are not then a message is displayed and the buttons are disabled. As the settings page is a content page from this master page I don't want the message to keep being displayed on all the settings pages.

this code worked for me:

                //Only show the message if on the dashboard (first page after login)
                if (this.ContentPlaceHolder1.Page is Dashboard)
                {
                    //Show modal message box
                    mmb.Show("Warning Message");
                }

Answer 5

使用下面的代码。

Page.ToString().Replace("ASP.","").Replace("_",".")

Answer 6

You can use:

Request.CurrentExecutionFilePath

Answer 7

Here is my solution to the problem (this code goes into the code behind the master page):

if (Page.TemplateControl.AppRelativeVirtualPath == "~/YourPageName.aspx")
{
   // your code here
}

or a bit more sophisticated, but less readable:

if (Page.TemplateControl.AppRelativeVirtualPath.Equals("~/YourPageName.aspx", StringComparison.OrdinalIgnoreCase))
{
   // your code here
}

Answer 8

Request.CurrentExecutionFilePath;

要么

Request.AppRelativeCurrentExecutionFilePath;

Answer 9

You can do this by getting the last segmant or the request and I'll be the Form name

string pageName = this.Request.Url.Segments.Last(); 

if (pageName.Contains("EmployeeTermination.aspx"))
{

}

Answer 10

You can try this one:

<%: this.ContentPlaceHolder1.Page.GetType().Name.Split('_')[0].ToUpper() %>

Put that code within the title tags of the Site.Master

Answer 11

I do something similar to this in a project of mine to dynamically attach css files based on the page being loaded. I just get the name of the file from the request:

this.Request.Url.AbsolutePath

And then extract the file name from there. I'm not sure if this will work if you are doing URL re-writes though.

Answer 12

string s =   Page.ToString().Replace("ASP.directory_name_","").Replace("_aspx",".aspx").Replace("_","-");
        if (s == "default.aspx")
              { /* do something */ }

Answer 13

so many answers I am using

<%if(this.MainContent.Page.Title != "mypagetitle") { %>
<%}%>

this makes it easy to exclude any single page and since your comparing a string you could even prefix pages like exclude_pagetitle and comparing a sub-string of the title. I use this commonly to exclude log in pages from certain features I don't want to load like session timeouts and live chat.

Answer 14

下面的代码工作就像一个迷人的..它

string PName = Request.UrlReferrer.Segments[Request.UrlReferrer.Segments.Length - 1];

Answer 15

您应该可以从母版页代码中使用Page.Request.Url.PathAndQuery或Url Uri对象的其他属性之一。

Answer 16

You can check the page type in the code-behind:

// Assuming MyPage1, MyPage2, and MyPage3 are the class names in your aspx.cs files:

if (this.Page is MyPage1)
{
  // do MyPage1 specific stuff
}
else if (this.Page is MyPage2)
{
  // do MyPage2 specific stuff
}
else if (this.Page is MyPage3)
{
  // do MyPage3 specific stuff
}