Detect Location geolocation

hello kentico team i am trying to detect the current location is there any method in kentico to use it and get the city name i try some this code but didnt work any one have idea thanks

 {%if(AnalyticsContext.CurrentGeoLocation.City  != null) {%}
              your food in  {% AnalyticsContext.CurrentGeoLocation.City %}

          {% } #%}
              {% else{ %}
              there is no food in this location
             {% } #%}