<ListView x:Name="SlotsList" ItemsSource="{Binding slots}" SelectedItem="{Binding SelectedItem, Mode=TwoWay}" >
            <ListView.ItemTemplate>
              <DataTemplate>
                <ViewCell>
                  <ViewCell.View>
                    <StackLayout>
                      <Button Text="{Binding .Text}" BackgroundColor="Gray"/>
                    </StackLayout>
                  </ViewCell.View>
                </ViewCell>
              </DataTemplate>
            </ListView.ItemTemplate>
          </ListView>