Invoke​Required, ​Invoke​Required, ​Invoke​Required...

I'm building a small application with Windows Forms and see this pattern constantly -

        public void Transfer(IList<Hash> items)
        {
            if (InvokeRequired)
            {
                Invoke(new ProcessDelegate<IList<Hash>>(Transfer), new object[] { items });
            }
            else
            {
                foreach (var e in items)
                {
                    hashBindingSource.Add(e);
                    Application.DoEvents();
                }
            }
        }

Is there a better way to do this? I imagine having an attribute on the method doing code-injection to create this pattern automatically - including creating any necessary delegate types.

Oh thread-safe scenegraph - where art thou.

To preempt any answers, I looked at google and found this

After only finding AOP approaches to this on the google, I suggested an extension method solution recently on C9. What do you think of that approach? 

esoteric said:

To preempt any answers, I looked at google and found this

littleguru said:

I don't like the current way either and therefore implemented a small class to help me out: http://www.liensberger.it/web/blog/?p=90 - I hope that helps you guys too.

The approach could be modified to use extension methods, but I didn't do that to keep it compilable for the C# 2.0 compiler.

dcuccia said:

After only finding AOP approaches to this on the google, I suggested an extension method solution recently on C9. What do you think of that approach?