WPF Listboxitem text scroll on text length greater than 15

hi i have a listbox(data-template as textblock)(listlox width as 150)  with 10 items ----- and in that  2nd and 5th items text length is 25. in starting the text should end with "..." and   when user mouseenter on listboxitems 2nd or 5th item the text should scroll from (left to  right) & (right to left) and on mouseleave it should go to normal state with " ... " at ending