WFP page navigator control

WPF navigator

UI:

<Grid x:Class="WpfApplication2.PagerNav"
             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"
             d:DesignHeight="68" d:DesignWidth="652">
    <Grid>
        <Grid Background="WhiteSmoke" Height="33" VerticalAlignment="Center" HorizontalAlignment="Center" Width="333">
            <TextBox HorizontalAlignment="Left" Width="61" Height="26" Margin="197,0,0,0" Name="txtPageNum" Text="1"></TextBox>
            <Button Content="prev" VerticalAlignment="Center" Height="28" HorizontalAlignment="Left" Margin="6,0,0,0" Name="btnPrev" IsEnabled="True"  Width="89" Click="btnPrev_Click" />
            <Button Content="next" VerticalAlignment="Center" Height="28" HorizontalAlignment="Left" Margin="101,0,0,0" Name="btnNext" IsEnabled="True"  Width="89" Click="btnNext_Click" />
            <Button Content="go" VerticalAlignment="Center" Height="28" HorizontalAlignment="Left" Margin="261,0,0,0" Name="btnGo" IsEnabled="True"  Width="64" Click="btnGo_Click" />

        </Grid>
    </Grid>
</Grid>

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApplication2
{
    /// <summary>
    /// Interaction logic for PagerNav.xaml
    /// </summary>
    public partial class PagerNav : Grid
    {
        public PagerNav()
        {
            InitializeComponent();
        }

        public int pageIndex = 1;
        public  void btnPrev_Click(object sender, RoutedEventArgs e)
        {
            pageIndex--;
            if (pageIndex < 1) {
                pageIndex = 1;
            }
            txtPageNum.Text =""+ pageIndex;
        }

        private void btnNext_Click(object sender, RoutedEventArgs e)
        {
            pageIndex++;
            txtPageNum.Text = "" + pageIndex;
        }

        private void btnGo_Click(object sender, RoutedEventArgs e)
        {

            pageIndex = int.Parse("" + txtPageNum.Text);

        }

    }
}

Main window use:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApplication2
{
    /// <summary>
    /// Interaction logic for UserControl1.xaml
    /// </summary>
    public partial class UserControl1 : UserControl
    {
        public UserControl1()
        {
            InitializeComponent();
            pagerNav1.btnPrev.Click += new RoutedEventHandler(PagerNav_Click);
            pagerNav1.btnNext.Click += new RoutedEventHandler(PagerNav_Click);
            pagerNav1.btnGo.Click += new RoutedEventHandler(PagerNav_Click);
        }

        void PagerNav_Click(object sender, RoutedEventArgs e)
        {

            //lbPager.Content =("out" + pagerNav1.pageIndex);
            // do LoadPage(pagerNav1.pageIndex);

        }
    }
}