private void CharacteristicDataTemplate(DeviceCharacteristicViewModel item, CharacteristicViewHolder holder, int position)
        {
            holder.CharacteristicNameLabel.Text = item.Characteristic.Name;
            holder.CharacteristicUuidLabel.Text = item.Characteristic.Uuid;
            holder.Permissions.Text             = GetCharacteristicPermissionString(item);

            holder.ClickSurface.SetOnClickCommand(ViewModel.NavigateCharacteristicDetailsCommand, item);
        }
        private string GetCharacteristicPermissionString(DeviceCharacteristicViewModel item)
        {
            var str = string.Empty;

            if (item.Characteristic.CanRead)
            {
                str += "r/ ";
            }
            if (item.Characteristic.CanWrite)
            {
                str += "w/ ";
            }
            if (item.Characteristic.CanUpdate)
            {
                str += "u/ ";
            }
            return(str);
        }