C# Change backgroundcolor specific row

Question

I've created a new project from the Grid App (XAML) template (C# Windows Store). So far I've changed nothing in the template, but I would like to change the backgroundcolor from a specific row in the grid.

<!--
    This grid acts as a root panel for the page that defines two rows:
    * Row 0 contains the back button and page title
    * Row 1 contains the rest of the page layout
-->
<Grid Style="{StaticResource LayoutRootStyle}">
    <Grid.RowDefinitions>
        <RowDefinition Height="140"/>
        <RowDefinition Height="*"/>
    </Grid.RowDefinitions>

I would like to change the backgroundcolor from row 0 (which contains the page title). Any ideas?? Thanks in advance!

This row consits of:

    <!-- Back button and page title -->
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Button x:Name="backButton" Click="GoBack" IsEnabled="{Binding Frame.CanGoBack, ElementName=pageRoot}" Style="{StaticResource BackButtonStyle}"/>
        <TextBlock x:Name="pageTitle" Text="{StaticResource AppName}" Grid.Column="1" IsHitTestVisible="false" Style="{StaticResource PageHeaderTextStyle}"/>
    </Grid>

Answer 1

You can't set the background color on the Grid.Row itself, instead set the Background property on whatever occupies this row.

For example

<Grid Style="{StaticResource LayoutRootStyle}">
  <Grid.RowDefinitions>
    <RowDefinition Height="140"/>
    <RowDefinition Height="*"/>
  </Grid.RowDefinitions>
  <Grid Background="Red" Grid.Row="0">
    <TextBlock>Test</TextBlock>
  </Grid>
</Grid>

EDIT: Updated for Silverlight; TextBlock doesn't have Background so you have to put the control in another Border or grid container which does have background. Code updated to reflect this.

Answer 2

How about inserting border where you need it

<Grid Style="{StaticResource LayoutRootStyle}">
  <Grid.RowDefinitions>
    <RowDefinition Height="140"/>
    <RowDefinition Height="*"/>
  </Grid.RowDefinitions>
    <Border Background="Red" Grid.ColumnSpan="1"></Border>
    <TextBlock>Test</TextBlock>
    <Border Background="blue" Grid.Row="1" Grid.ColumnSpan="1"></Border>
    <TextBlock Grid.Row="1">Test2</TextBlock>
 </Grid>

note that you can especify the columns span in case of include more columns