android - How to Add Click event in Stack Layout or Frame -

i new in xamarin.forms please me out how can add click event in stack layout or frame

<frame grid.column="0" backgroundcolor="#ffffff" grid.row="0" hasshadow="true" outlinecolor = "black"> </frame>   <stacklayout grid.column="0" backgroundcolor="#313fa0" grid.row="0"> </stacklayout> 

you can add tapgesturerecognizer stacklayout in xaml this:

<stacklayout grid.column="0" backgroundcolor="#313fa0" grid.row="0">     <stacklayout.gesturerecognizers>         <tapgesturerecognizer tapped="ontapped"/>     </stacklayout.gesturerecognizers> </stacklayout> 

then can implement ontapped method in code behind:

void ontapped(object sender, eventargs e)  {     // stuff } 

there guide @ xamarin website: http://developer.xamarin.com/guides/cross-platform/xamarin-forms/working-with/gestures/#using_xaml