WPF：箭头导航DataGridTemplateColumn

Question

我在DataGrid中创建了一个自定义列，其中包括一个Grid，该网格由一行组成，在该行中放置了TextBlock，Separator和另一个TextBlock。 我可以使用Tab键在元素之间实现正常移动：

而且，事实证明是使用鼠标来做到这一点的：

但是，这不适用于箭头键，当您尝试向右移动时，焦点消失了（我怀疑单元格本身已突出显示，而我关闭了对它的选择）：

如何使用键盘上的箭头正确配置嵌套在DataGridTemplateColumn（两个TextBlocks）中的元素的移动？ 谢谢。 码：

<DataGrid Grid.Row="1"  AutoGenerateColumns="False" ItemsSource="{Binding Report}"
              CanUserResizeRows="False" SelectionMode="Single" IsReadOnly="True" HorizontalScrollBarVisibility="Disabled" HeadersVisibility="Column"
              CanUserSortColumns="False">
        <DataGrid.Columns>
            <DataGridTextColumn ElementStyle="{StaticResource WrapText}" IsReadOnly="true" Header="Number" Binding="{Binding Path=Number, Mode=TwoWay}" Width="*"/>
            <DataGridTemplateColumn Width="*">
                <DataGridTemplateColumn.CellStyle>
                    <Style TargetType="DataGridCell">
                        <Setter Property="BorderThickness" Value="0"/>
                        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
                        <Setter Property="KeyboardNavigation.IsTabStop" Value="False"/>
                        <Setter Property="Margin" Value="0,0,-1,0"></Setter>
                    </Style>
                </DataGridTemplateColumn.CellStyle>
                <DataGridTemplateColumn.HeaderStyle>
                    <Style TargetType="{x:Type DataGridColumnHeader}">
                        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
                    </Style>
                </DataGridTemplateColumn.HeaderStyle>
                <DataGridTemplateColumn.HeaderTemplate>
                    <DataTemplate>
                        <Grid>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="*"/>
                                <RowDefinition Height="Auto"/>
                                <RowDefinition Height="*"/>
                            </Grid.RowDefinitions>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="0.5*"/>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition Width="0.5*"/>
                            </Grid.ColumnDefinitions>
                            <TextBlock Background="Transparent" TextWrapping="Wrap" Grid.ColumnSpan="3" Text="Physics All" TextAlignment="Center" Margin="5,5,5,5"/>
                            <Separator Background="{DynamicResource GridViewColumnHeaderBorderBackground}" Grid.ColumnSpan="3" Grid.Row="1" Margin="-4,0,-4,0"/>
                            <TextBlock Background="Transparent" TextWrapping="Wrap" Grid.Row="2" Grid.Column="0"  Text="Physics 1" TextAlignment="Center" Margin="5,5,5,5"/>
                            <StackPanel Orientation="Horizontal" Grid.Row="2" Grid.Column="1">
                                <Separator Style="{StaticResource {x:Static ToolBar.SeparatorStyleKey}}" Background="{DynamicResource GridViewColumnHeaderBorderBackground}" Margin="0, -3,0,-3"/>
                            </StackPanel>
                            <TextBlock Background="Transparent" TextWrapping="Wrap" Grid.Row="2" Grid.Column="2" Text="Physics 2" TextAlignment="Center" Margin="5,5,5,5" />
                        </Grid>
                    </DataTemplate>
                </DataGridTemplateColumn.HeaderTemplate>
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition Width="*"/>
                            </Grid.ColumnDefinitions>
                            <TextBox Grid.Column="0" Background="Transparent" Text="{Binding Physical1}" TextWrapping="Wrap" TextAlignment="Left"
                                     IsReadOnly="True" BorderThickness="1, 1.2, 1, 1.2" Cursor="Arrow" SelectionBrush="Transparent" BorderBrush="Transparent">
                                <TextBox.ContextMenu>
                                    <ContextMenu Visibility="Collapsed">
                                    </ContextMenu>
                                </TextBox.ContextMenu>
                                <TextBox.Style>
                                    <Style TargetType="TextBox" BasedOn="{StaticResource textBoxNoBorderIsMouseOver}"/>
                                </TextBox.Style>
                            </TextBox>
                            <StackPanel Orientation="Horizontal" Grid.Column="1">
                                <Separator Background="Black" Margin="0, -1,0,-1" Visibility="{Binding Path=SeparatorIsVisible, Converter={StaticResource BoolToVisConverter} }">
                                    <Separator.Style>
                                        <Style TargetType="Separator" BasedOn="{StaticResource {x:Static ToolBar.SeparatorStyleKey}}"/>
                                    </Separator.Style>
                                </Separator>
                            </StackPanel>
                            <TextBox Grid.Column="2" Background="Transparent" Text="{Binding Physical2}" TextWrapping="Wrap" TextAlignment="Left"
                                     IsReadOnly="True" BorderThickness="1, 1.2, 1, 1.2" Cursor="Arrow" SelectionBrush="Transparent" BorderBrush="Transparent">
                                <TextBox.ContextMenu>
                                    <ContextMenu Visibility="Collapsed">
                                    </ContextMenu>
                                </TextBox.ContextMenu>
                                <TextBox.Style>
                                    <Style TargetType="TextBox" BasedOn="{StaticResource textBoxNoBorderIsMouseOver}"/>
                                </TextBox.Style>
                            </TextBox>
                        </Grid>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>
    </DataGrid>

PS：代码被极大地截断，因此它可以简单地显示问题。