static void loadItemsAndSetSelected(BindableObject bindable)
        {
            BindablePickerControl picker = (BindablePickerControl)bindable;

            if (picker.ItemsSource as IEnumerable != null)
            {
                int count = 0;
                foreach (object obj in (IEnumerable)picker.ItemsSource)
                {
                    string value = string.Empty;
                    if (picker.DisplayProperty != null)
                    {
                        var prop = obj.GetType().GetRuntimeProperties().FirstOrDefault(p => string.Equals(p.Name, picker.DisplayProperty, StringComparison.OrdinalIgnoreCase));
                        if (prop != null)
                        {
                            value = prop.GetValue(obj).ToString();
                        }
                    }
                    else
                    {
                        value = obj.ToString();
                    }
                    picker.Items.Add(value);
                    if (picker.SelectedItem != null)
                    {
                        if (picker.SelectedItem == obj)
                        {
                            picker.SelectedIndex = count;
                        }
                    }
                    count++;
                }
            }
        }
        private static void OnDisplayPropertyChanged(BindableObject bindable, object oldValue, object newValue)
        {
            BindablePickerControl picker = (BindablePickerControl)bindable;

            picker.DisplayProperty = (string)newValue;
            loadItemsAndSetSelected(bindable);
        }
        private static void OnItemsSourceChanged(BindableObject bindable, object oldValue, object newValue)
        {
            BindablePickerControl picker = (BindablePickerControl)bindable;

            picker.ItemsSource = (IList)newValue;
            loadItemsAndSetSelected(bindable);
        }
        private static void OnSelectedItemChanged(BindableObject bindable, object oldValue, object newValue)
        {
            BindablePickerControl picker = (BindablePickerControl)bindable;

            picker.SelectedItem = newValue;
            if (picker.ItemsSource != null && picker.SelectedItem != null)
            {
                int count = 0;
                foreach (object obj in picker.ItemsSource)
                {
                    if (obj == picker.SelectedItem)
                    {
                        picker.SelectedIndex = count;
                        break;
                    }
                    count++;
                }
            }
        }