将WPF窗口属性重置为XAML中设置的默认值

There are default values you can set for some of window properties in WPF. For example you can set a Canvas' Width or a TextBlock's Text in XAML and then your app can change them by accessing the controls. Are there any ways of setting those values to how they were declared in XAML without saving them yourself? Are they kept somewhere so that you can access them at runtime?There are default values you can set for some o