Adding Usercontrol within another usercontrol to occupy the whole space - silverlight-4.0

Question

My usercontrol that i add programmatically doesn't show up.
This is my MainPage.xaml :-
<UserControl x:Class="ScrollingEffect.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="400">
<Canvas x:Name="LayoutRoot" Background="White">
<Canvas x:Name="content" Height="Auto" Width="Auto"/>
<Canvas Width="Auto">
<StackPanel Height="27" Width="1400" Background="#B2000000"/>
</Canvas>
</Canvas>
</UserControl>
This is my MainPage.xaml.cs :-
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
namespace ScrollingEffect
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainPage_Loaded);
}
void MainPage_Loaded(object sender, RoutedEventArgs e)
{
RedBack objRedBack = new RedBack();
content.Children.Add(objRedBack);
}
}
}
This is my RedBack.xaml :-
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" Margin="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
x:Class="ScrollingEffect.RedBack"
d:DesignWidth="640" d:DesignHeight="480">
<Canvas x:Name="LayoutRoot">
<Canvas.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="Black" Offset="0.078"/>
<GradientStop Color="Red" Offset="1"/>
</LinearGradientBrush>
</Canvas.Background>
</Canvas>
</UserControl>

Answer 1

Try Using Grid as your main layout container in RedBack.xaml and then place canvas with-in the Grid.