<Window x:Class="RefreshDemo.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        xmlns:oxy="http://oxyplot.org/wpf"
        Title="Refresh by changing the Model property of the Plot control" Height="480" Width="640">
    <Grid>
        <oxy:PlotView Model="{Binding PlotModel}"/>
    </Grid>
</Window>
