开发中遇到运行指定页面时一片空白，逐步查是ControlTemplate中TargetType指定就可以了。

    <Style x:Key="HeaderStyle" TargetType="sdk:DataGridColumnHeader" >

        <Setter Property="Foreground" Value="#FF000000" />

        <Setter Property="HorizontalContentAlignment" Value="Left" />

        <Setter Property="VerticalContentAlignment" Value="Center" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="sdk:DataGridColumnHeader">

                    <ContentPresenter Content="{TemplateBinding Content}" VerticalAlignment="Center" HorizontalAlignment="Center" />

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>