How to call content Page function from Master Page

Question

It is necessary to call content Page function from Master Page. Please let me know if more data needed.

MasterPage.master.cs looks like

 protected void Required_Function(object sender, EventArgs e)
 {
    // call Update_Content_Page() from content page 
 }

Default.aspx looks like

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="contentPlaceHolder" Runat="Server">

<asp:Label ID="Label1" runat="server" Text="Label">Hello people!</asp:Label>

</asp:Content>

Default.aspx.cs looks like

using…
public partial class _Default : System.Web.UI.Page
{ 
    protected void Update_Content_Page()
    {
        Label1.Text=”Hello world”;
    }
}

Answer 1

you can try like this.. not exactly but will helps you.....

You can inherit your page from a base class. Then you can create a virtual method in your base class which will get overridden in your page. You can then call that virtual method from the master page like this -

(cphPage.Page as PageBase).YourMethod();

Here, cphPage is the ID of the ContentPlaceHolder in your master page. PageBase is the base class containing the YourMethod method.

Answer 2

I usually find that when the MasterPage needs to call a function in a ContentPage you have a flaw in the design of your page. The MasterPage should not need to know anything about the ContentPages. But if you feel that this is the right way for you here is a guide from CodeProject

Answer 3

Personally i did a trick using jquery: When i clicked on the master button, it actually clicked on the content page button named 'saveButton' and used its function:

HTML:

enter code here

.master jquery code:

function tester() {
        console.log("Testing");
        $("[id$='SaveButton']").click();
    }

I used id$='SaveButton' cause as you might know now, ASP.NET renames controls when they are inside a master, a repeater, a grid view, and other containing controls. $id='stuff' validates that the control ID ends with 'stuff'.