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");

Solution 1

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.

Solution 2

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");

Solution 3

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.

Solution 4

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

Master.Method(); (in code behind)

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Comments

[Jason]

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?"

[Armando Contestabile]

This is the best solution avoiding cast.