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>