How do I customize the display of column headers in my WPF Datagrid? -

i trying customize datagrid. want insert content above column headers. trying use controltemplate this. have xaml code below. problem <contentpresenter /> not outputting anything. when load page, after textblock appears directly below before textblock nothing in between. want display column headers in space.

<datagrid itemssource="{binding list}" autogeneratecolumns="true">      <datagrid.template>         <controltemplate>             <stackpanel orientation="vertical">                 <textblock>before</textblock>                 <contentpresenter /> <!-- outputs nothing -->                 <textblock>after</textblock>                                         <itemspresenter />             </stackpanel>         </controltemplate>     </datagrid.template>  </datagrid> 

how display column headers between before textblock , after textblock? list object bindinglist of generic class has couple of public properties.

i found answer. should use <datagridcolumnheaderspresenter /> instead of <contentpresenter />. code works looks like:

<datagrid itemssource="{binding list}" autogeneratecolumns="true">      <datagrid.template>         <controltemplate>             <stackpanel orientation="vertical">                 <textblock>before</textblock>                 <datagridcolumnheaderspresenter />                 <textblock>after</textblock>                 <itemspresenter />             </stackpanel>                                 </controltemplate>     </datagrid.template>  </datagrid>