XamarinでListViewを表っぽくした

WPFのDataGridみたいな感じにしたいけど、Borderとかないし。。。
細いGridを格子状にして、BoxViewを並べればできるっぽいのでそうしてみた。
ソース

        <ListView Grid.Row="11" Grid.ColumnSpan="2" ItemsSource="{Binding BloodList}" SelectedItem="{Binding SelectedItem}" SeparatorVisibility="None"  RowHeight="20">
            <ListView.Behaviors>
                <bhv:EventToCommandBehavior EventName="ItemSelected" Command="{Binding ItemSelectedCommand}"/>
                <bhv:EventToCommandBehavior EventName="ItemAppearing" Command="{Binding ItemAppearingCommand}"/>
            </ListView.Behaviors>
                <ListView.Header>
                <Grid BackgroundColor="White">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="80*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="30*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="10*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="20*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="20*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="20*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="30*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="10*" />
                        <ColumnDefinition Width="1" />
                        <ColumnDefinition Width="40*" />
                        <ColumnDefinition Width="1" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="1"/>
                        <RowDefinition Height="*"/>
                        <RowDefinition Height="1"/>
                    </Grid.RowDefinitions>
                    <!--横の罫線-->
                    <BoxView Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="19" BackgroundColor="White" HeightRequest="1" VerticalOptions="End" HorizontalOptions="FillAndExpand"/>
                    <BoxView Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="19" BackgroundColor="White" HeightRequest="1" VerticalOptions="End" HorizontalOptions="FillAndExpand"/>
                    <!--縦の罫線-->
                    <BoxView Grid.Column="0" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="2" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="4" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="6" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="8" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="10" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="12" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="14" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="16" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                    <BoxView Grid.Column="18" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="White" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>

                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="1"  HorizontalTextAlignment="Center" Text="日付" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="3"  HorizontalTextAlignment="Center" Text="時間" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="5"  HorizontalTextAlignment="Center" Text="起床" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="7"  HorizontalTextAlignment="Center" Text="最高血圧" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="9"  HorizontalTextAlignment="Center" Text="最低血圧" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="11"  HorizontalTextAlignment="Center" Text="脈拍" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="13" HorizontalTextAlignment="Center" Text="体重" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="15" HorizontalTextAlignment="Center" Text="服薬" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>
                    <Label  HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="17" HorizontalTextAlignment="Center" Text="メモ" FontSize="Small" BackgroundColor="Navy" TextColor="White"/>      
                </Grid>
            </ListView.Header>
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <ViewCell>
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="80*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="30*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="10*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="20*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="20*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="20*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="30*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="10*" />
                                <ColumnDefinition Width="1" />
                                <ColumnDefinition Width="40*" />
                                <ColumnDefinition Width="1" />
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="1"/>
                                <RowDefinition Height="*"/>
                                <RowDefinition Height="1"/>
                            </Grid.RowDefinitions>
                            <!--横の罫線-->
                            <BoxView Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="19" BackgroundColor="Black" HeightRequest="1" VerticalOptions="End" HorizontalOptions="FillAndExpand"/>
                            <BoxView Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="19" BackgroundColor="Black" HeightRequest="1" VerticalOptions="End" HorizontalOptions="FillAndExpand"/>
                            <!--縦の罫線-->
                            <BoxView Grid.Column="0" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="2" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="4" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="6" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="8" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="10" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="12" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="14" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="16" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>
                            <BoxView Grid.Column="18" Grid.Row="0" Grid.RowSpan="3"  BackgroundColor="Black" WidthRequest="1" VerticalOptions="FillAndExpand" HorizontalOptions="End"/>

                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="1"  HorizontalTextAlignment="Center" Text="{Binding Date, Converter={StaticResource DateTimeToStringConv}, Mode=OneWay}"  FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="3"  HorizontalTextAlignment="Center" Text="{Binding Time, Converter={StaticResource TimeSpanToStringConv}, Mode=OneWay}"  FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="5"  HorizontalTextAlignment="Center" Text="{Binding Wakeup, Converter={StaticResource BoolToMarkConv}, Mode=OneWay}" FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="7"  HorizontalTextAlignment="Center" Text="{Binding Max, Mode=OneWay}" FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="9"  HorizontalTextAlignment="Center" Text="{Binding Min, Mode=OneWay}" FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="11"  HorizontalTextAlignment="Center" Text="{Binding Pulse, Mode=OneWay}" FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="13" HorizontalTextAlignment="Center" Text="{Binding Weight, Mode=OneWay}" FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="15" HorizontalTextAlignment="Center" Text="{Binding Check, Converter={StaticResource BoolToMarkConv}, Mode=OneWay}" FontSize="Small"/>
                            <Label HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Margin="-6,-6,-6,-6" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="17" HorizontalTextAlignment="Center" Text="{Binding Memo, Mode=OneWay}" FontSize="Small"/>
                        </Grid>
                    </ViewCell>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>