Visual Basic® 2010 Unleashed

Understanding Views and Binding Lists

CollectionViewSource objects expose an interesting property named View. It basically provides the ability of filtering, sorting, and navigating through a bound collection of items. To understand how a view works, the best example in our scenario is handling the Next and Back buttons. The following code snippet shows how easy it is to navigate back and forward through items:

The code simply calculates the position and enables moving back or forward only if there are any other items that can be navigated. Notice how the CustomersOrdersViewSource.View property exposes the Count property, representing the current ...