[WPF] DataGrid Cell Style: Textdecoration Strikethrough

Question

Hi,

I'm using DataTriggers for change the Text Style in cells where property IsDeletedItem becames true.

In my datagrid I added:

<DataGrid.CellStyle>

<Style TargetType="{x:Type DataGridCell}">

<Style.Triggers>

<DataTrigger Binding="{Binding IsDeletedItem}" Value="True">

<Setter Property="TextBlock.TextDecorations" Value="Strikethrough" />

<Setter Property="FontSize" Value="22" />

</DataTrigger>

</Style.Triggers>

</Style>

</DataGrid.CellStyle>

The FontSize of text is changed, but the text decorations is not applied.

Why?

Thanks.