让WPF ListView/GridView排序列标题点击的最佳方式?

There are lots of solutions on the internet attempting to fill this seemingly very-basic omission from WPF. I'm really confused as to what would be the "best" way. For example... I want there to be little up/down arrows in the column header to indicate sort direction. There are apparently like 3 different ways to do this, some using code, some using markup, some using markup-plus-code, and all seeming rather like a hack. of solutions on the internet att