<DataGrid.RowHeaderTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type DataGridRow}},
                            Path=Item.RowHeader}"
                                   HorizontalAlignment="Stretch"
                                   MinWidth="55"/>
                    </DataTemplate>
                </DataGrid.RowHeaderTemplate>

                <DataGrid.Columns>
                    <!--m-->
                    <DataGridTextColumn Binding="{Binding Path=m, IsAsync=True, StringFormat='{}{0:0.##}'}" Header="m"/>

                    <!--α-->
                    <DataGridTextColumn Binding="{Binding Path=a, IsAsync=True}" Header="α" />

                    <!--h-->
                    <DataGridTextColumn Binding="{Binding Path=h, IsAsync=True, StringFormat='{}{0:0.#}'}" Header="h" />

                    <!--D1-->
                    <DataGridTextColumn Binding="{Binding Path=D1, IsAsync=True, StringFormat='{}{0:F0}'}">
                        <DataGridTextColumn.Header>
                            <StackPanel Orientation="Horizontal">
                                <TextBlock>
                                    D
                                    <InlineUIContainer BaselineAlignment="Subscript">
                                        <TextBlock Text="1"/>
                                    </InlineUIContainer>
                                </TextBlock>
                            </StackPanel>
                        </DataGridTextColumn.Header>
                    </DataGridTextColumn>

                    <!--D2-->
                    <DataGridTextColumn Binding="{Binding Path=D2, IsAsync=True, StringFormat='{}{0:F0}'}">
                        <DataGridTextColumn.Header>
                            <StackPanel Orientation="Horizontal">
                                <TextBlock>
                                    D
                                    <InlineUIContainer BaselineAlignment="Subscript">
                                        <TextBlock Text="2"/>
                                    </InlineUIContainer>
                                </TextBlock>
                            </StackPanel>
                        </DataGridTextColumn.Header>
                    </DataGridTextColumn>

                </DataGrid.Columns>

            </DataGrid>