[Mono-bugs] [Bug 471213] New: Base class method isn't called when triggered by extending class (passed as argument to base class) event

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Fri Jan 30 17:42:32 EST 2009


           Summary: Base class method isn't called when triggered by
                    extending class (passed as argument to base class)
    Classification: Mono
           Product: Mono: Compilers
           Version: 2.2.x
          Platform: i686
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: pmgration at yahoo.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: Community User

Description of Problem:

Steps to reproduce the problem:
1. Compile the following using Mono:

// Inheritee.cs
using System;

public abstract class Inheritee
    public abstract event EventHandler Finished;

    public Inheritee()

    public void test(Inheritee inheritee)
        inheritee.Finished += inheriteeTest;

    public void inheriteeTest(object sender, EventArgs e)
        Console.WriteLine("Inheritee test method.");

// Inheritor.cs
using System;

public class Inheritor : Inheritee
    public override event EventHandler Finished;

    public Inheritor()
        Finished += this.inheritorTest;
        Finished(this, EventArgs.Empty);
        Console.WriteLine("Press any key to exit..");

    public void inheritorTest(object sender, EventArgs e)
        Console.WriteLine("Inheritor test method.");

    public static void Main()
        new Inheritor();

Actual Results:

Only "Inheritor test method." is displayed in console.

Expected Results:

Both "Inheritor test method." and "Inheritee test method." should be displayed.

How often does this happen? 

Every time

Additional Information:

Tested using Mono 1.9x, 2.2x on Ubuntu and Gentoo respectively and 2.2x on

When compiling on Windows using .NET 3.5 compiler (csc) the expected results
are shown correctly. (Not tested on any .NET versions prior to 3.5

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