How to use AutomationProperties.Name?

You can pass the Window Title as parameter to its parent and set this parameter while initializing.

I do this way and works fine.

You can change the attached property AutomationProperties.Name either in XAML using:

AutomationProperties.Name = "new name"

or in code using:

Button.SetValue(AutomationProperties.NameProperty, "new value");
or
AutomationProperties.SetName(Button, "new value");