I have a TreeView that is bound to a tree of ViewModel instances. The problem is that the model data is coming from a slow repository so I need data virtualization. The list of sub ViewModel below a node should only be loaded when the parent tree view node is expanded and it should be unloaded when it is collapsed. How can this be impl...
Using the Business Application template from the brand new released RIA Services, you can see lots of examples using the data grid on top of a DomainDataSource in combination with a DataPager. The properties PageSize and LoadSize can be used to adjust the amount of data to be displayed in one page and the data that is prefetched in the b...
In Windows Phone a ListBox support the virtualization of the data, that means it can only load the data needed and not everything. Peter Torr explains the interface you need to implement. The short version is that you have to create both a method that return the position of an element and another one that return the element in a specifi...