How do I call a call method from XAML in WPF?

Question

How do I call a call method from XAML in WPF?

Answer 1

Except the commands there is another way that allows you to call a method directly from XAML. It is not commonly used but the option is still there.

The method must have one of the two types of signatures

• void Foo()
• void Bar(object sender, EventArgs e)

To make it working, you have to include references and namespaces of the Microsoft.Expression.Interactions and System.Windows.Interactivity into your project. Easiest way is to install a nuget. In the example below the namespaces are defined as xmlns:i and xmlns:ei.

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        DataContext = this;
    }

    public void VoidParameterlessMethod() 
        => Console.WriteLine("VoidParameterlessMethod called");

    public void EventHandlerLikeMethod(object o, EventArgs e) 
        => Console.WriteLine("EventHandlerLikeMethod called");

}