Question

i’ve created a Datagrid Control in WPF. how can i make my Button visible only for a Cell

inside the row that i have select it.
anyone can help.

XAML:
<DataGridTemplateColumn x:Name="typ" Header="H." Width="50">
  <DataGridTemplateColumn.CellTemplate>
    <DataTemplate>
     <Button Name="btnTabelle" Visibility="Hidden" Height="20" Width="25" 
             Click="Button_Table_Click">

     </Button>
   </DataTemplate>
  </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>

Answer 1

You can set the Visibility based on if the DataGridCell.IsSelected, although you will need a BooleanToVisibilityConverter to convert the boolean value to a Visibility one

Here’s an example, using a RelativeSource binding to find the DataGridCell

 <Button Visibility="{Binding Path=IsSelected,
             RelativeSource={RelativeSource AncestorType={x:Type DataGridCell}},
             Converter={StaticResource MyBooleanToVisibiltyConverter}" ... />