I'd like to set a bottom border on each row in the grid, but can only find how to put all 4 borders around each cell.. my code is quite simple

<Grid Height="174" HorizontalAlignment="Left" Margin="23,289,0,0" Name="grid2" VerticalAlignment="Top" Width="730">

    <Grid.RowDefinitions>

        <RowDefinition Height="45" />

        <RowDefinition Height="25" />

        <RowDefinition Height="25" />

        <RowDefinition Height="25" />

        <RowDefinition Height="25" />

        <RowDefinition Height="25" />

    </Grid.RowDefinitions>

    <Grid.ColumnDefinitions>

        <ColumnDefinition Width="255" />

        <ColumnDefinition Width="95" />

        <ColumnDefinition Width="95" />

        <ColumnDefinition Width="95" />

        <ColumnDefinition Width="95" />

        <ColumnDefinition Width="95" />

    </Grid.ColumnDefinitions>

</Grid>

For another grid I'm using that needs all four borders, I'm using

<Border Grid.Column="0" Grid.Row="0" BorderBrush="#61738B" BorderThickness="1" />

P.S. The contents of the grid are some labels, textboxes, etc.. if that matters at all.

Appreciate any pointers.