How to add a GridLines to a TreeDataGrid?

[nasterhe]

TreeDataGrid If there are no GridLines, it will be very uncomfortable to visualize, especially if different cells have different background colors.
Is there a way to add GridLines to TreeDataGrid，Thanks.

[msneijders]

With some styling:

<TreeDataGrid>
    <TreeDataGrid.Styles>
        <Style Selector=":is(TreeDataGridCell)">
            <Setter Property="BorderBrush" Value="Black" />
            <Setter Property="BorderThickness" Value="0,0,1,1" />
        </Style>
    </TreeDataGrid.Styles>
</TreeDataGrid>

or use TreeDataGridRow for only lines on row level.

[nasterhe]

Thanks

[nasterhe]

With some styling:

<TreeDataGrid>
    <TreeDataGrid.Styles>
        <Style Selector=":is(TreeDataGridCell)">
            <Setter Property="BorderBrush" Value="Black" />
            <Setter Property="BorderThickness" Value="0,0,1,1" />
        </Style>
    </TreeDataGrid.Styles>
</TreeDataGrid>

or use TreeDataGridRow for only lines on row level.

Is there a way to exclude the TreeDataGridCell in the first column?@msneijders

[msneijders]

Try with Child position selectors. Perhaps in combination with the not selector.

[nasterhe]

Thanks.