如何在WPF中设置DataGrid标头的样式

Question

我有DataGrid这样：

<DataGrid AutoGenerateColumns="False"  Height="221" HorizontalAlignment="Center" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" 
              Margin="6,269,0,0" Name="dataGrid1" VerticalAlignment="Center" Width="875" SelectionChanged="dataGrid1_SelectionChanged">
        <DataGrid.Columns >
            <DataGridTextColumn x:Name="Id" Header="ID"  Binding="{Binding Path=Key}" HeaderStyle="">
            </DataGridTextColumn>
            <DataGridTemplateColumn Header="Image" Width="SizeToCells" IsReadOnly="True" MinWidth="80">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Image Width="16" Height="16"  Source="{StaticResource MyImageSource}"  HorizontalAlignment="Center" VerticalAlignment="Center"/>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>
    </DataGrid>

如何以DataGrid Header为中心？并为它申请风格？

感谢

---

编辑1）：

编写此代码后

：

<DataGrid.ColumnHeaderStyle>
            <Style TargetType="{x:Type DataGridColumnHeader}">
                <Setter Property="FontWeight"  Value="Bold" />
                <Setter Property="HorizontalAlignment" Value="Center" />
                <Setter Property="HorizontalContentAlignment" Value="Center" />
            </Style>
        </DataGrid.ColumnHeaderStyle>

网格列成为：

为什么？

Answer 1

为了避免标题折叠的影响，只需以这种方式纠正您的风格：

  <Setter Property="HorizontalAlignment" Value="Stretch" />
  <Setter Property="HorizontalContentAlignment" Value="Center" />

Answer 2

为Datagrid的DatagridColumnHeader添加样式

@ContextConfiguration