private void SomeMethod()
    {
        var localVariable = CrossClassObject.MyProperty; // get 'cross-class' property MyProperty

        CrossClassObject.MyMethod();                     // execute 'cross-class' method MyMethod()
    }
    private void SomeMethod()
    {
        var localVariable = CrossClassObject.MyField; // get 'cross-class' field MyField

        CrossClassObject.MyMethod();                  // execute 'cross-class' method MyMethod()
    }