AvalonEdit TextEdit Not Scrolling when used in a usercontrol inside Itemscontrol - wpf

Question

I am using Avalon Edit control inside an itemscontrol. The scrollviewer is not scrolling when the cursor position changes. here is the code
UserControl1.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"
xmlns:avalonedit="http://icsharpcode.net/sharpdevelop/avalonedit"
mc:Ignorable="d"
x:Class="WpfApplication2.UserControl1"
x:Name="UserControl">
<Grid x:Name="LayoutRoot">
<avalonedit:TextEditor/>
</Grid>
</UserControl>
MainWindow.xaml
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero"
xmlns:avalonedit="http://icsharpcode.net/sharpdevelop/avalonedit"
xmlns:local="clr-namespace:WpfApplication2"
x:Class="WpfApplication2.MainWindow"
x:Name="Window"
Title="MainWindow"
Width="640" Height="480">
<Grid x:Name="LayoutRoot">
<ScrollViewer CanContentScroll="True" HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Visible">
<ItemsControl ItemsSource="{Binding}" x:Name="ItemsCtrlSteps">
<ItemsControl.ItemTemplate>
<DataTemplate>
<local:UserControl1/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>
</Grid>
</Window>
Mainwindow.xaml.cs
public partial class MainWindow : Window
{
public MainWindow()
{
this.InitializeComponent();
ItemsCtrlSteps.DataContext = new List<string> { "a", "b" };
}
}
And i dont want to show scrollbars inside each texteditor..please help!!