Hi,
Look on the Select location .
<telerikInput:RadListPicker Grid.Row="0" Grid.Column="3" x:Name="routeTypeListPicker" HorizontalOptions="CenterAndExpand" VerticalOptions="CenterAndExpand" HeightRequest="40" WidthRequest="120" Margin="5"
ItemsSource="{Binding RouteTypeItems}"
DisplayMemberPath="Value"
SelectedItem="{Binding SelectedRouteTypeItem, Mode=TwoWay}">
</telerikInput:RadListPicker>