Hi,

I am trying to make the column header of my WPF Datagrid to be transparent.

I am able to set it to a color without problem, but I can't have it transparent. Here is what I tried:

<Style x:Key="DatagridColumnHeaderStyle" TargetType="{x:Type tk:DataGridColumnHeader}">
   <Setter Property="Background" Value="Transparent" />
   <Setter Property="Foreground" Value="#C2C4C6" />
</Style>

<Style x:Key="DashboardGridStyle" TargetType="{x:Type tk:DataGrid}">
   <Setter Property="ColumnHeaderStyle" Value="{StaticResource DatagridColumnHeaderStyle}" />
   <Setter Property="Background" Value="Transparent" />
   <Setter Property="RowBackground" Value="Transparent" />
</Style>

<tk:DataGrid Style="{StaticResource DashboardGridStyle}" >
...
</tk:DataGrid>

With this code, it seems to take the default brush.

What am I missing?