MainPage.cs

<Page x:Class="LC_Points.MainPage"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      xmlns:local="using:LC_Points"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
      Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
      DataContext="{Binding Source={StaticResource Locator},
                            Path=MainViewModel}"
      mc:Ignorable="d">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="10*" />
            <RowDefinition Height="20*" />
            <RowDefinition Height="20*" />
            <RowDefinition Height="20*" />
            <RowDefinition Height="20*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>


        <ComboBox x:Name="subjectCmbBx"
                  Grid.Row="1"
                  Grid.ColumnSpan="2"
                  Width="174"
                  HorizontalAlignment="Left"
                  VerticalAlignment="Top"
                  ItemsSource="{Binding subjects}" />
        <ComboBox x:Name="grdeCmbBx"
                  Grid.Row="1"
                  Grid.Column="1"
                  Grid.ColumnSpan="2"
                  Width="167"
                  HorizontalAlignment="Right"
                  ItemsSource="{Binding grades}" />

        <Button x:Name="addGradeBtn"
                Grid.Row="2"
                HorizontalAlignment="Left"
                Content="Add Grade" />

        <ToggleButton x:Name="higherTglBtn"
                      Grid.Row="3"
                      HorizontalAlignment="Left"
                      Content="Higher" />
        <ToggleButton x:Name="ordinaryTglBtn"
                      Grid.Row="3"
                      Grid.ColumnSpan="2"
                      HorizontalAlignment="Right"
                      Content="Ordinary" />
        <TextBlock Grid.Row="5"
                   Grid.ColumnSpan="3"
                   Width="212"
                   Height="54"
                   HorizontalAlignment="Center"
                   Text=""
                   TextWrapping="Wrap" />
    </Grid>

    <Page.BottomAppBar>
        <CommandBar x:Name="appBar" IsSticky="True">
            <CommandBar.PrimaryCommands>
                <AppBarButton Icon="Delete"
                              IsCompact="False"
                              Label="Clear All" />
                <AppBarButton Icon="Help"
                              IsCompact="False"
                              Label="About" />
            </CommandBar.PrimaryCommands>
            <CommandBar.SecondaryCommands>
                <AppBarButton Label="Share score!" />
            </CommandBar.SecondaryCommands>
        </CommandBar>
    </Page.BottomAppBar>
</Page>