private void BindablePicker_SelectedIndexChanged(object sender, EventArgs e)
{
var stateIndex = Convert.ToInt32(StatePicker.SelectedIndex) + 1;
var lstCity = regVM.GetCityData(stateIndex.ToString());
if (stateIndex > 0)
{
CityPicker.ItemsSource = lstCity;
CityPicker.IsEnabled = true;
}
}
