When answering another question I started to wonder how I could Add new properties to all controls in a form just like the ToolTip-control does.
For example I could use that to Add a ‘IsDirty’-flag to all textboxes just by adding the component to the form and it would handle this for every textbox.
When adding the tooltip-control to the form all controls magically gets a new property ‘Tooltip on tooltip1’ that can be set both programatically and in design view.
I want to be able to do my own enhancer like that.
It’s an Extender Provider.