WPF - Conditional binding with trigger

/* By Dylan SUN*/

WPF conditional binding enables the application to have different behaviors based on a pre-defined condition.

For example, you could use conditional binding to change the background color of your WPF application main window.

Suppose you have the following window declaration in you WPF application.

<Window x:Class="MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:views="clr-namespace:Views"
        xmlns:viewModels</