C# WPF .NET 4.0 ArrowRepeatButton, NumericUpDown, and TimeCtrl Controls

<UserControl x:Class="UpDownCtrls.NumericUpDown"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             xmlns:local="clr-namespace:UpDownCtrls"
             x:Name="Root"
             d:DesignHeight="23" d:DesignWidth="120"
             MinWidth="23"       
             Loaded="Root_Loaded"
             IsEnabledChanged="Root_IsEnabledChanged">
    <Grid>
        <TextBox Name="TextBoxCtrl" VerticalAlignment="Stretch" Padding="2,2,18,3" 
                IsEnabled="{Binding IsEnabled, ElementName=Root}"               
                Foreground="{Binding Foreground, ElementName=Root}" 
                Height="{Binding ActualHeight, ElementName=Root}"
                Width="{Binding ActualWidth, ElementName=Root}"
                VerticalContentAlignment="{Binding VerticalContentAlignment, ElementName=Root}"
                HorizontalContentAlignment="{Binding  HorizontalContentAlignment, ElementName=Root}"              
                TextAlignment="{Binding TextAlignment, ElementName=Root}"              
                PreviewKeyDown="TextBoxCtrl_PreviewKeyDown"
                PreviewTextInput="TextBoxCtrl_PreviewTextInput"
                PreviewDragOver="TextBoxCtrl_PreviewDragOver"
                PreviewDrop="TextBoxCtrl_PreviewDrop"
                PreviewQueryContinueDrag="TextBoxCtrl_PreviewQueryContinueDrag"
                PreviewMouseWheel="TextBoxCtrl_PreviewMouseWheel"
                LostKeyboardFocus="TextBoxCtrl_LostKeyboardFocus">
            <TextBox.CommandBindings>
                <CommandBinding Command="Cut" CanExecute="Command_Cut_CanExecute" Executed="CommandBinding_CutExecuted"/>
                <CommandBinding Command="Paste" CanExecute="Command_Paste_CanExecute" Executed="CommandBinding_PasteExecuted"/>
            </TextBox.CommandBindings>
        </TextBox>
        <local:UpDownButtons x:Name="UpDown" HorizontalAlignment="Right" 
                Style="{DynamicResource ResourceKey=UpDownButtonsStyle}" 
                VerticalAlignment="Stretch" IsEnabled="{Binding IsEnabled, ElementName=Root}" 
                UpClick="UpDown_UpClick" DownClick="UpDown_DownClick"/>
    </Grid>
</UserControl>