how to take value of tapped column/bar of winrt xaml column series chart using c# -

How winrt xaml column series to the value of the column / bar tapped chart I have other chart using the value of each bar plans to do ..

My code:

  & lt; Charting: chart x: Name = "chart" title = "My performance" horizontal tracing = "left" Vrtiklelinement = "top" Margin = "0,0,0,0" width = "895" height = "548" foreground = "Black" fontisystem = "10" & gt; And lieutenant; Charting: Colmsirij x: Name = "Maichart" padding = "10" Bordertiklikeshn = "5" Borderbraus = "# FF 233 083" background = "yellow" Independent Valupth = "Testkod" Nirbrtavepath = "percentage" Haislmbakshn = "true" margin = "0,0,0,4" "has tapped" = "Maychartget" & gt;  

did not get me the price of the option chosen ........