HOw to Raise Events in an ASCX User Control (Is it better in ASPNET 2.0 ?)

[Anonieko]

I know Visual Studio lacked support on easily writing code
to raise events from a ascx user control ( because you
have to hand write them).
(http://codebetter.com/blogs/brendan..../06/27795.aspx)
Question: Is it better and easier now in ASPNET 2.0 , meaning VS 2005?

[Anonieko]

This is what you have to hand-write

Raise Events From ASP.NET ASCX User Controls

Drop a UserControl called MyControl.ascx into a page.

To add a member variable to the container class, you can simply add the
line (C#):

protected MyControl MyControl1;

STEPS IN RAISING EVENTS FROM ASP.NET ASCX USER CONTROLS.
=============== =============== =============== ===========

USERCONTROL.ASC X.CS
-------------------

1. Define a public member

public event System.EventHan dler TabClicked;

2. Raise it whenever you want like this:

if(this.TabClic ked != null)
this.TabClicked (this, new EventArgs());


PARENTPAGE.ASPX .CS
------------------

1. Drag and Drop the control.

2. Add in the Page_Load or Init the wire code
this.MyControl. TabClicked +=new
EventHandler(My Control_TabClic ked);

3. Write the Handler

private void MyControl_TabCl icked(object sender, EventArgs e){ /*
etc... */ }

If you type "this.MyControl .TabClicked +=" in the IDE, an press TAB
twice

PASSING DATA
============
Now, say you wanted to pass some specific data to the container
control.

One way is to use a delegate. This comes in really handy, and is in
fact quite easy too.
For example, what if you wanted to pass some private value from the
encapsulated child class?

1. First create a custom class deriving from System.EventArg s with a
member variable
that contains your interesting private value:

public class TabClickEventAr gs : EventArgs
{
private String myString;
public String MyString
{
get { return myString; }
set { myString = value; }
}
}

2. Then create a delegate for your event like so:

public delegate void TabClickEventHa ndler(object sender,
TabClickEventAr gs e);
The rest is just like before, except that you define your custom event
hander,
instead of the basic System.EventHan dler.

public event TabClickEventHa ndler TabClicked;

And raise it like so.

// Raise the tabclicked event.
if(this.TabClic ked != null)
{
TabClickEventAr gs e = new TabClickEventAr gs();
e.SomeString = "test";
this.TabClicked (this, e);
}

Finally, when you wire the event up, your method signature for the
handler,
just needs to match the signature of your delegate:

private void MyControl_TabCl icked(object sender, TabClickEventAr gs
e) {}

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