public async void dondeVender()
{
var compra = new Compra
{
IdCompra = Settings.IdCompra,
};
var response = await ApiServices.InsertarAsync <Compra>(compra, new Uri(Constants.BaseApiAddress), "/api/Compras/GetCompra");
compraresult = JsonConvert.DeserializeObject <Compra>(response.Result.ToString());
var color = new Color(0, 0, 255, 0.3);
TK.CustomMap.Position centro = new TK.CustomMap.Position(latitude: compraresult.Latitud.Value, longitude: compraresult.Longitud.Value);
var circle = new TKCircle {
Radius = 700, Center = centro, Color = color
};
TkCircle.Add(circle);
VerCompra = true;
// CenterSearch = new MapSpan(centro, centro.Latitude, centro.Longitude);
CenterSearch = (MapSpan.FromCenterAndRadius((new TK.CustomMap.Position(centro.Latitude, centro.Longitude)), Distance.FromMiles(5)));
}