monitor mousemove event in wpf

Pete is right but if you are really insistant on avoiding code, you could do this. Write a custom class ONCE, and then use that class in XAML. This way your actual UI remains mostly code-behind free. Here's a quickly put together example (you may need to clean and polish this up).

First step is to create a class such as:

public class MousePosition : DependencyObject
{
    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool GetCursorPos(ref NativePoint pt);

    [StructLayout(LayoutKind.Sequential)]
    internal struct NativePoint
    {
        public int X;
        public int Y;
    };

    public static Point GetCurrentMousePosition()
    {
        NativePoint nativePoint = new NativePoint();
        GetCursorPos(ref nativePoint);
        return new Point(nativePoint.X, nativePoint.Y);
    }

    private Dispatcher dispatcher;

    Timer timer = new Timer(100);

    public MousePosition()
    {
        dispatcher = Application.Current.MainWindow.Dispatcher;
        timer.Elapsed += timer_Elapsed;
        timer.Start();
    }

    void timer_Elapsed(object sender, ElapsedEventArgs e)
    {
        Point current = GetCurrentMousePosition();
        this.CurrentPosition = current;
    }

    public Point CurrentPosition
    {
        get { return (Point)GetValue(CurrentPositionProperty); }

        set
        {
            dispatcher.Invoke((Action)(() =>
              SetValue(CurrentPositionProperty, value)));
        }
    }

    public static readonly DependencyProperty CurrentPositionProperty
      = DependencyProperty.Register(
        "CurrentPosition", typeof(Point), typeof(MousePosition));
}

Now use it in XAML :

<Window.Resources>
  <local:MousePosition x:Key="mousePosition" />
</Window.Resources>

<Grid>
  <StackPanel Orientation="Horizontal">
      <TextBlock>Mouse Position:</TextBlock>
      <TextBlock
        Text="{Binding Source={StaticResource mousePosition}, Path=CurrentPosition}"
        Width="360" />
  </StackPanel>
</Grid>