Unable to set DataGridColumn's ToolTip

datagrid, datagridcolumn, wpf, wpf-controls, wpftoolkit

Solution

This works for me:

<Style TargetType="{x:Type Custom:DataGridColumnHeader}">
   <Style.Triggers>
      <Trigger Property="IsMouseOver" Value="True">
          <Setter Property="ToolTip" Value="{Binding Column.(ToolTipService.ToolTip), RelativeSource={RelativeSource Self}}"/>
      </Trigger>
   </Style.Triggers>
</Style>

Problem

I tried the following: ``` <tk:DataGridTextColumn Header="Item" Binding="{Binding Item.Title}" ToolTipService.ToolTip="{Binding Item.Description}" /> ``` And I don't see any tool tip. Any ideas? Is it even implemented?

Original source