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how to call a function in aspx page , from a user control (ascx) page in asp.net application.

I have an asp.net web application, with master pages , aspx pages and also user control (ascx ) pages. sample code below

I have a function in menu.ascx , user control page, which needs to fire a function in default.aspx page.
is there a way to do this ?

<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site1.master.cs" Inherits="masterpage.Site1" %>
<%@Register Src=~/menu.ascx” TagName=”menu” TagPrefix=”uc1” %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>

<body>
<div id="navigaion">
<uc1:menu ID=”menuControl” runat=”server” />
</div>
<div id="maincontent">
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server"> </asp:ContentPlaceHolder>
</div>
</body>
</html>

Kyle Abrahams, PMP

Essentially you create an event in your ascx child control that the page can subscribe to.

ASCX:

  public event EventHandler MyEvent;

    private void OnMyEvent()
    {
        if (MyEvent != null)
        {
            MyEvent(this, EventArgs.Empty);
        }
    }

  // calll OnMyEvent from another function when you want to fire the event from within the ASCX.

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ASPX:

MyUserControl.MyEvent += new  EventHandler(MyUserControl_MyEventTriggered)

private void MyUserControl_MyEventTriggered(object sender, EventArgs e)
    {
        // ... do something when event is fired
    }

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mikha

ASKER

@Kyle- Thanks for your comment. I am new to events and delegates in .NET. I will research on this as well.

but based on your comment.

1. can I fire the event from the ascx page (not from cs code) . can i define my own custom event , similar to say , onbuttonclick = callsomemethod in the ascx page?
2. my use case is , I have a master page , with both ascx and aspx page that loads with in the master page, and I need to pass an int parameter from ascx page to aspx page.

how can i pass an int parameter ?
if you have sample of master page, aspx and ascx page , working together , will give me a better picture. right now, i'm not entirely sure on how this events are fired and tied together.

ASKER CERTIFIED SOLUTION

Kyle Abrahams, PMP

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