AFIAK, you can't. You have to create an instance of the class to see the change.

>How can I make my classes update their visual appearance during development mode, based on properties of that class.
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>For instance, I have a container class with a label and a textbox in it. I have a property on the container class that stores the field name that will be both the controlsource of the textbox the label's caption value. It updates and displays properly at run-time, but I want to see the label caption change at design time.