Windows Forms Programming in Visual Basic .NET

Extender Property Providers

So far the discussion has focused on the properties implemented by a control for itself. TimeZoneModifier, an example of such a property, allows the clock control to be configured to display the time in any time zone. One way to use this feature is to display the time in each time zone where your organization has offices. If each office were visually represented with a picture box, you could drag one clock control for each time zone onto the form, manually adjusting the TimeZoneModifier property on each clock control. The result might look like Figure 9.15.

Figure 9.15. Form with Multiple Time Zones

This works quite ...