Once upon a time there were four friends – two TextBoxes and two ComboBoxes. They all lived happily on a WPF Window bound together in blissful MVVM harmony. The TextBoxes were bound to the ViewModel’s TextBoxText property and the ComboBoxes to the ComboBoxSelectedItem property. <Window x:Class="MvvmComboBox.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mvvm="clr-namespace:MvvmComboBox" Title="MVVM ComboBox" Width="300" Height="150"> <Window.Resources> <mvvm:MainWindowViewModel […]