Question

what are the pros and cons of using a standard event handler or overriding the base class of an asp.net page? Are there any? I’ve seen both used to do the same thing.

protected void Page_PreInit(object sender, EventArgs e)
{
    //Put your code here
}

protected override void OnPreInit(EventArgs e)
{
    base.OnPreInit(e);
    //Put your code here
}

Answer 1

if you use the override you can decide when the custom function should be execute. after or before base method. but if you use auto wireup events it will execute after the base event.

protected override void OnPreInit(EventArgs e)
{
    base.OnPreInit(e);
    //Put your code here
}

or

protected override void OnPreInit(EventArgs e)
{
    //Put your code here
    base.OnPreInit(e);
}