How do you call master page methods from a content page when the button is inside an update panel?

Question

I have a masterpage and a content page. In the content page I have a script manager and an update panel. In the update panel I want to be able to click a button which would hit a public method on the master page to show a message. This works if I don't have an update panel on the content page but is there a way to get it to work when the button is in an update panel?

Master Page:

public void ShowMessage(string Message) 
{
    lblError.Text = Message; 
    lblError.Visible = True; 
}

Content Page:

Master.ShowMessage("something");

this page has a code for this too http://stackoverflow.com/questions/6332889/call-method-in-master-page — , Jan 08 '15 at 22:43

Amin · Answer 1 · 2011-02-06T06:44:50.833

19

I think it's a bit late , but for those who are looking for the solution,

Assuming your master page class like:

public MyMAsterPage: MasterPage
{
    public void ShowMessage(string Message) 
    {
       // DO SOMETHING
    }
}

from your content page you can easily call any public method as follow:

(this.Master as MyMasterPage).ShowMessage("Some argument");

edited Feb 06 '11 at 06:44

answered Feb 06 '11 at 06:41

Amin

201
2
4

score 7 · Answer 2 · answered Apr 04 '13 at 16:26

Function which define in masterpage:

public void Mesaj(string msj)
{
        lbl_Mesaj.Text = msj;
}

Function which define in content page

protected void Page_Load(object sender, EventArgs e)
{
    MasterPageWeb master = (MasterPageWeb)this.Master;
    master.Mesaj("www.zafercomert.com");
}

You can call masterpage's function from content page like this.

score 2 · Accepted Answer · answered Oct 22 '10 at 15:02

2

I ended up just sucking it up and putting the script manager on the master page and putting the label on the master page inside an update panel.

answered Oct 22 '10 at 15:02

ozzijb

674
5
10
17

score 1 · Answer 4 · answered Jan 11 '21 at 03:46

1

<%@ MasterType VirtualPath="~/masters/SourcePage.master" %>

Master.Method(); (in code behind)

answered Jan 11 '21 at 03:46

psychopython

39
1
4

This is the best solution avoiding cast. – Armando Contestabile Nov 17 '21 at 14:38

score 0 · Answer 5 · answered Oct 23 '15 at 18:37

Based on Amin's solution, i used an extension method to solve this more often.

public static T GetMasterPageObject<T>(this MasterPage masterPage) where T : MasterPage
{
    return (T)masterPage;
}

Example:

this.Master.GetMasterPageObject<MasterPageClass>().MethodYouNeed("Parameters");

Chase Florell · Answer 6 · 2010-10-21T16:47:25.260

You'll need to

this.button1 = this.Master.FindControl("UpdatePanel1").FindControl("Button1") as Button;

Here's a blog post to help describe the process. Basically you're drilling down into your controls.

EDIT

Sorry I just re-read your question. The code above will allow you to FIND a Button on your Masterpage from your Content Page codebehind.

It's a little more difficult to execute the Masterpage codebehind method from your content page. A better way might be to a JavaScript event to your button (or just use jQuery), and put the code for a JavaScript modal window in your Masterpage.

<!-- script stuff -->
    <script>
    $(function() {
        $( "#dialog" ).dialog({
            autoOpen: false
        });

        $( "#opener" ).click(function() {
            $( "#dialog" ).dialog( "open" );
            return false;
        });
    });
    </script>
<!-- end script stuff -->

<!-- dialog div -->
    <div id="dialog" title="Basic dialog">
        <p>say something meaningful</p>
    </div>
<!-- end dialog div -->

<!-- content page stuff -->
    <button id="opener">open alert</button>
<!-- end content page stuff-->

HOWEVER

If you're really hooked on calling a masterpage method from your content page, you need to make the method public

Find info in Step 4: Calling the Master Page's Public Members from a Content Page

There are two ways that a content page can programmatically interface with its master page:

Using the Page.Master property, which returns a loosely-typed reference to the master page, or

Specify the page's master page type or file path via a @MasterType directive; this automatically adds a strongly-typed property to the page named Master.

I'm already able to call the method like I noted in my question, the only thing I can't figure out is calling from an update panel. "This works if I don't have an update panel on the content page but is there a way to get it to work when the button is in an update panel?" — ozzijb, Oct 21 '10 at 18:04

How do you call master page methods from a content page when the button is inside an update panel?

6 Answers6

EDIT

HOWEVER