c# - How can create a random code -

i want windows phone silverlight 8.1 code when press button opens next page randomly (from between pages in program) ??

thanks

int randomnumber;  randomnumber = new random().next(1, n + 1);  switch(randomnumber) {    case 1: showpage1();            break;    case 2: showpage2();            break;    case 3: showpage3();            break;    ...    case n: showpagen();              break; }