WPF / MVVM - Extending ViewModel Functionality Via ValueConverters

In a Model-View-ViewModel (MVVM) project, the ViewModel can easily become a large and unwieldy piece of code. You can break this down by creating a hierarchy of ViewModels that exist in a parent-child relationship, or you can extend the functionality of an existing ViewModel via the use of ValueConv... [More]

WPF MVVM – Simple Property Rules Engine

I'm currently working on a large legacy WPF project where my ViewModels often have a large number of properties, and those properties have some complex inter-relationships that need to be reflected in the behaviour of the app,  via the ViewModels and XAML bindings. Specifically, some propertie... [More]

WPF TreeView – SelectedItem Two Way Binding

Because the standard WPF TreeView implementation supports Virtualization it is unable to support two way bindings on its SelectedItem property as standard. This makes sense, because with Virtualization you may not have a container (TreeViewItem) available for any particular bound data item at the ti... [More]