Problem when overriding virtual event

[EDN Admin]

<p style="padding-right:0px; font-size:14px; vertical-align:baseline; clear:both; word-wrap:break-word; font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif
Ive got the following code
<pre style="padding:5px; border:0px; font-size:14px; vertical-align:baseline; background-color:#eeeeee; font-family:Consolas,Menlo,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New,monospace,serif; width:auto; max-height:600px <pre class="prettyprint public delegate void NotificacaoScanner(NotifScanner e);

// interface
public interface IScanner
{
event NotificacaoScanner onFinalLeitura;
}[/code][/code]
<pre class="prettyprint // abstract class that implements the interface
public abstract class ScannerGCPerif : IScanner
{
public virtual event NotificacaoScanner onFinalLeitura;
{
add { throw new NotImplementedException("Event not available for this service"); }
remove { throw new NotImplementedException("Event not available for this service"); }
}
}


// concrete class that implements the abstract class
public class ScannerBurroughs : ScannerGCPerif
{
public override event NotificacaoScanner onFinalLeitura;
}
[/code]
<br/>
<p style="padding-right:0px; font-size:14px; vertical-align:baseline; clear:both; word-wrap:break-word; font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif
Why when I subscribe the <code style="margin:0px; padding:1px 5px; border:0px; font-size:14px; vertical-align:baseline; background-color:#eeeeee; font-family:Consolas,Menlo,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New,monospace,serif onFinalLeitura[/code] event
of a <code style="margin:0px; padding:1px 5px; border:0px; font-size:14px; vertical-align:baseline; background-color:#eeeeee; font-family:Consolas,Menlo,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New,monospace,serif ScannerBurroughs[/code] instance,
it insists on execute the event declaration of the base class (ScannerGCPerif), where the exception is?

View the full article