私は非常に複雑なGUIを持っていますが、下部にコントロール全体を表示できません（コードでは、「EMAIL」、「FORWARD」などを表示できません...）。このコードの何が問題になっていますか? 「Window」「TabControl」「ScrollViewer」のせいでしょうか。
よろしくお願いします！
コードは次のとおりです。
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
ShowInTaskbar="False" WindowStartupLocation="CenterOwner"
SizeToContent="Height" Title="Window1">
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<TabControl Name="tabControl1" Grid.Row="0">
<TabItem Header="A">
<Grid Margin="5,5,5,5">
<StackPanel>
<Grid>
<TabControl>
<TabItem Header="A1">
<Grid Margin="5,5,5,5">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition Height="10" />
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto" />
<ColumnDefinition Width="auto" />
<ColumnDefinition Width="auto" />
</Grid.ColumnDefinitions>
<StackPanel Name="spG11" Grid.Row="0" Grid.Column="0" Margin="5,5,5,5">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="25"/>
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="130"/>
<ColumnDefinition Width="150"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="A11" VerticalAlignment="Center" />
<TextBox Grid.Row="0" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="1" Grid.Column="0" Text="A12" VerticalAlignment="Center" />
<TextBox Grid.Row="1" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="2" Grid.Column="0" Text="A13" VerticalAlignment="Center" />
<TextBox Grid.Row="2" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="3" Grid.Column="0" Text="A14" VerticalAlignment="Center" />
<TextBox Grid.Row="3" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="4" Grid.Column="0" Text="A15" VerticalAlignment="Center" />
<TextBox Grid.Row="4" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
</Grid>
</StackPanel>
<StackPanel Grid.Row="0" Grid.Column="1" Grid.ColumnSpan="2" Margin="5,5,5,5">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="130"/>
<ColumnDefinition Width="150"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="A21" VerticalAlignment="Center" />
<TextBox Grid.Row="0" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="1" Grid.Column="0" Text="A22" VerticalAlignment="Center" />
<TextBox Grid.Row="1" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="2" Grid.Column="0" Text="A23" VerticalAlignment="Center" />
<TextBox Grid.Row="2" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="3" Grid.Column="0" Text="A24" VerticalAlignment="Center" />
<ComboBox Grid.Row="3" Grid.Column="1" IsEnabled="False" HorizontalAlignment="Stretch" VerticalAlignment="Center">
<ComboBoxItem Content="False" IsSelected="True" IsEnabled="False"></ComboBoxItem>
<ComboBoxItem Content="True"></ComboBoxItem>
</ComboBox>
<TextBlock Grid.Row="4" Grid.Column="0" Text="A25" VerticalAlignment="Center" />
<ComboBox Grid.Row="4" Grid.Column="1" IsEnabled="False" HorizontalAlignment="Stretch" VerticalAlignment="Center">
<ComboBoxItem Content="False" IsSelected="True" IsEnabled="False"></ComboBoxItem>
<ComboBoxItem Content="True"></ComboBoxItem>
</ComboBox>
</Grid>
</StackPanel>
<Border BorderThickness="1" BorderBrush="Gray" Grid.Row="1" Grid.Column="0">
<StackPanel >
<StackPanel>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="105"/>
<ColumnDefinition Width="120"/>
</Grid.ColumnDefinitions>
<TextBox Height="25" HorizontalAlignment="Stretch" IsReadOnly="True" Text="X1" TextAlignment="Center" Background="LightBlue" Grid.Row="0" Grid.Column="0"/>
<TextBox HorizontalAlignment="Stretch" Text="X2" IsReadOnly="True" TextAlignment="Center" Background="LightBlue" Grid.Row="0" Grid.Column="1"/>
<TextBox Height="25" HorizontalAlignment="Stretch" IsReadOnly="True" Text="X3" TextAlignment="Center" Background="LightBlue" Grid.Row="0" Grid.Column="2"/>
</Grid>
</StackPanel>
<ScrollViewer HorizontalAlignment="Left" VerticalScrollBarVisibility="Visible" Height="150">
<StackPanel>
<Grid >
<Grid.RowDefinitions>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="105"/>
<ColumnDefinition Width="120"/>
</Grid.ColumnDefinitions>
</Grid>
</StackPanel>
</ScrollViewer>
</StackPanel>
</Border>
<StackPanel Grid.Row="1" Grid.Column="1" VerticalAlignment="Center" >
<Button Margin="2,2,2,2" Content="ADD" Width="50"/>
<Button Margin="2,2,2,2" Content="DEL" Width="50" />
</StackPanel>
<Border BorderThickness="1" BorderBrush="Gray" Grid.Row="1" Grid.Column="2">
<StackPanel HorizontalAlignment="Left">
<StackPanel>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="50"/>
</Grid.ColumnDefinitions>
<TextBox Height="25" HorizontalAlignment="Stretch" IsReadOnly="True" Text="Y1" TextAlignment="Center" Background="LightBlue" Name="VaAmplitude" Grid.Row="0" Grid.Column="0"/>
<TextBox HorizontalAlignment="Stretch" Text="Y2" IsReadOnly="True" TextAlignment="Center" Background="LightBlue" Name="VaPhase" Grid.Row="0" Grid.Column="1"/>
<TextBox Height="25" HorizontalAlignment="Stretch" IsReadOnly="True" Text="Y3" TextAlignment="Center" Background="LightBlue" Name="VbAmplitude" Grid.Row="0" Grid.Column="2"/>
<TextBox HorizontalAlignment="Stretch" Text="Y4" IsReadOnly="True" TextAlignment="Center" Background="LightBlue" Name="VbPhase" Grid.Row="0" Grid.Column="3"/>
</Grid>
</StackPanel>
<ScrollViewer HorizontalAlignment="Left" VerticalScrollBarVisibility="Visible" Height="150">
<Grid >
<Grid.RowDefinitions>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="50"/>
<ColumnDefinition Width="50"/>
</Grid.ColumnDefinitions>
</Grid>
</ScrollViewer>
</StackPanel>
</Border>
<StackPanel Grid.Row="3" Grid.Column="0" Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
<CheckBox Content="SELECT" IsChecked="True"/>
<TextBlock Width="12" />
<CheckBox Content="FORWARD" IsChecked="False"/>
</StackPanel>
<StackPanel Grid.Row="3" Grid.Column="2" Orientation="Horizontal" HorizontalAlignment="Center">
<Button Content="LIST" />
</StackPanel>
</Grid>
</TabItem>
</TabControl>
</Grid>
</StackPanel>
</Grid>
</TabItem>
<!-- -->
<TabItem Header="B">
<Grid Margin="5,5,5,5">
<StackPanel>
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<TabControl Grid.Row="0">
<TabItem Header="B1">
<Grid Margin="5,5,5,5">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition Height="10" />
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto" />
<ColumnDefinition Width="auto" />
<ColumnDefinition Width="auto" />
<ColumnDefinition Width="auto" />
</Grid.ColumnDefinitions>
<StackPanel Name="spU11" Grid.Row="0" Grid.Column="0" Margin="5,5,5,5">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="25"/>
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="130"/>
<ColumnDefinition Width="150"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="B11" VerticalAlignment="Center" />
<TextBox Grid.Row="0" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="1" Grid.Column="0" Text="B12" VerticalAlignment="Center" />
<TextBox Grid.Row="1" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="2" Grid.Column="0" Text="B13" VerticalAlignment="Center" />
<TextBox Grid.Row="2" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="3" Grid.Column="0" Text="B14" VerticalAlignment="Center" />
<TextBox Grid.Row="3" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="4" Grid.Column="0" Text="B15" VerticalAlignment="Center" />
<TextBox Grid.Row="4" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="5" Grid.Column="0" Text="B16" VerticalAlignment="Center" />
<TextBox Grid.Row="5" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
</Grid>
</StackPanel>
<StackPanel Grid.Row="0" Grid.Column="1" Grid.ColumnSpan="2" Margin="5,5,5,5">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
<RowDefinition Height="25" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="130"/>
<ColumnDefinition Width="150"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="B21" VerticalAlignment="Center" />
<TextBox Grid.Row="0" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="1" Grid.Column="0" Text="B22" VerticalAlignment="Center" />
<TextBox Grid.Row="1" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="2" Grid.Column="0" Text="B23" VerticalAlignment="Center" />
<TextBox Grid.Row="2" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="4" Grid.Column="0" Text="B24" VerticalAlignment="Center" />
<TextBox Grid.Row="4" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
<TextBlock Grid.Row="5" Grid.Column="0" Text="B25" VerticalAlignment="Center" />
<TextBox Grid.Row="5" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
</Grid>
</StackPanel>
<Border BorderThickness="1" BorderBrush="Gray" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2">
<StackPanel>
<StackPanel>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="60"/>
<ColumnDefinition Width="172"/>
<ColumnDefinition Width="170"/>
</Grid.ColumnDefinitions>
<TextBox Height="25" HorizontalAlignment="Stretch" IsReadOnly="True" Text="Q1" TextAlignment="Center" Background="LightBlue" Grid.Row="0" Grid.Column="0"/>
<TextBox HorizontalAlignment="Stretch" Text="Q2" IsReadOnly="True" TextAlignment="Center" Background="LightBlue" Grid.Row="0" Grid.Column="1"/>
<TextBox Height="25" HorizontalAlignment="Stretch" IsReadOnly="True" Text="Q3" TextAlignment="Center" Background="LightBlue" Grid.Row="0" Grid.Column="2"/>
</Grid>
</StackPanel>
<ScrollViewer HorizontalAlignment="Left" VerticalScrollBarVisibility="Visible" Height="150">
<Grid>
<Grid.RowDefinitions>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="60"/>
<ColumnDefinition Width="172"/>
<ColumnDefinition Width="170"/>
</Grid.ColumnDefinitions>
</Grid>
</ScrollViewer>
</StackPanel>
</Border>
<StackPanel Grid.Row="1" Grid.Column="2" VerticalAlignment="Center" >
<Button Margin="2,2,2,2" Content="ADD" Width="60"/>
<Button Margin="2,2,2,2" Content="DEL" Width="60" />
</StackPanel>
<StackPanel Grid.Row="3" Grid.ColumnSpan="3">
<CheckBox Content="FORWARD" IsChecked="True" />
</StackPanel>
</Grid>
</TabItem>
</TabControl>
<StackPanel Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Center">
<StackPanel Grid.Row="3" Grid.Column="0" Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
<TextBlock Text="EMAIL" />
<TextBox Width="80"/>
</StackPanel>
<TextBlock Width="30" />
<StackPanel Grid.Row="3" Grid.Column="0" Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
<TextBlock Text="PAT NO" />
<TextBox Width="80"/>
</StackPanel>
</StackPanel>
</Grid>
</StackPanel>
</Grid>
</TabItem>
</TabControl>
<StackPanel Grid.Row="1" HorizontalAlignment="Stretch" Name="testItemLabelValue" Visibility="Hidden">
<TextBox Margin="0,1,0,1" HorizontalAlignment="Stretch" />
<StackPanel x:Name="labelling"></StackPanel>
</StackPanel>
<StackPanel Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center" Height="50">
<Button Content="YES" Width="70" Height="25" HorizontalAlignment="Right" Margin="0,0,20,0" />
<TextBox Margin="0,1,0,1" HorizontalAlignment="Stretch" Visibility="Hidden" />
<Button Content="CANCEAL" Width="70" Height="25" HorizontalAlignment="Left"/>
</StackPanel>
</Grid>
</Window>