如何将项目点击事件添加到项目控件

I am having problems with generating a click event for items inside an items control. I am new to xaml nad wpf. Can you the experts help me out. Below is the code that i have come up with but now having no clue on how to add a click event to for the generated items. Will very much appreciate your responses. Thank you for readingI am having problems with generating a click ev