ASP.NET UserControl OnError

Question

UserControls in ASP.NET (4.0) inherit from System.Web.UI.UserControl. VisualStudio intellisense suggest OnError as valid override of TemplateControl. At runtime .NET ignores this error handling. Only the OnError at Page-Level gets invoked. Did i miss anything or is there a design issue?

public partial class Sample : System.Web.UI.UserControl
{
    protected override void OnError(EventArgs e)
    {
        // Never reach ;o)
        base.OnError(e);
    }
}

Answer 1

ah.. the elusive OnError

this page sheds some good light on the inner workings of this event:

http://weblogs.asp.net/vga/archive/2003/06/16/8748.aspx

it may be that some exceptions are caught w/out triggering OnError

Answer 2

Why do you want to override OnError? You'd probably be better off by using a try/catch block or subscribing to the Application_Error event.