Alright, crank this program up in your browser now. Click on the Update Labels button. Remember, this requires a little bit of patience because of how we specified the time intervals, or sleeping times, to exaggerate the effects of time a bit. Figure 6.20.7 shows that the labels have finished updating and when:
Clearly, because of the sleeping times we entered, you can see that this run was updated first at 5:11:47 PM, then at 5:11:52 PM, and finally at 5:11:57 PM, all on 10/16/2015, of course.
These are the basics. Remember the idea here, so you don't forget that the main point is that you have a delegate construct, such as public delegate void LabelUpdater, and you can make an object of that type, as you can see the type in LabelUpdater lu. You can...