Simple safe event raising

raise.cs

using System;

class Foo
{
    event EventHandler DoAThing;

    void WhyYouEvenGottaDoAThing()
    {
        DoAThing.Raise(this);
    }
}

public static class EventExtensions
{
    public static void Raise(this EventHandler handler, object sender)
    {
        handler.Raise(sender, EventArgs.Empty);
    }

    public static void Raise(this EventHandler handler, object sender, EventArgs args)
    {
        if (handler != null)
        {
            handler(sender, args);
        }
    }

    public static void Raise<T>(this EventHandler<T> handler, object sender, T args)
        // you will need where T : EventArgs if < .NET 4.5
    {
        if (handler != null)
        {
            handler(sender, args);
        }
    }
}