c# - Dev Express グリッドの見出しを中央に配置するには?

Question

IN 次の Dev Express グリッドでは、見出しを中央に配置したいと考えており、現在は左側に寄っています。「施設」「状態」などをどのように中心化しますか？

<dxg:GridControl x:Name="grid"
                     ItemsSource="{Binding Summary}">
        <dxg:GridControl.Columns>
            <dxg:GridColumn FieldName="Facility"
                            dxg:BandedViewBehavior.Column="0"
                            dxg:BandedViewBehavior.Row="0"
                            dxg:BandedViewBehavior.RowSpan="2"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="State"
                            dxg:BandedViewBehavior.Column="1"
                            dxg:BandedViewBehavior.ColumnSpan="3"
                            dxg:BandedViewBehavior.IsBand="True"
                            HorizontalHeaderContentAlignment="Center"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="CNA"
                            EditSettings="{StaticResource TimeSpanEditSettings}"
                            FieldName="StateAide"
                            dxg:BandedViewBehavior.Column="1"
                            dxg:BandedViewBehavior.Row="1"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="LPN"
                            EditSettings="{StaticResource TimeSpanEditSettings}"
                            FieldName="StateLpn"
                            dxg:BandedViewBehavior.Column="2"
                            dxg:BandedViewBehavior.Row="1"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="RN"
                            EditSettings="{StaticResource TimeSpanEditSettings}"
                            FieldName="StateRn"
                            dxg:BandedViewBehavior.Column="3"
                            dxg:BandedViewBehavior.Row="1"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="Federal"
                            FieldName=""
                            dxg:BandedViewBehavior.Column="4"
                            dxg:BandedViewBehavior.ColumnSpan="3"
                            dxg:BandedViewBehavior.IsBand="True"
                            HorizontalHeaderContentAlignment="Center"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="CNA"
                            EditSettings="{StaticResource TimeSpanEditSettings}"
                            FieldName="FederalAide"
                            dxg:BandedViewBehavior.Column="4"
                            dxg:BandedViewBehavior.Row="1"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="LPN"
                            EditSettings="{StaticResource TimeSpanEditSettings}"
                            FieldName="FederalLpn"
                            dxg:BandedViewBehavior.Column="5"
                            dxg:BandedViewBehavior.Row="1"
                            HeaderTemplate="{StaticResource productHeader}" />
            <dxg:GridColumn Header="RN"
                            EditSettings="{StaticResource TimeSpanEditSettings}"
                            FieldName="FederalRn"
                            dxg:BandedViewBehavior.Column="6"
                            dxg:BandedViewBehavior.Row="1"
                            HeaderTemplate="{StaticResource productHeader}" />
        </dxg:GridControl.Columns>