WPF

protected override void OnRender(DrawingContext dc)
{
    dc.PushClip(new RectangleGeometry(new Rect(RenderSize)));
    dc.DrawGeometry(Background, new Pen(BorderBrush, BorderWidth), GetHandleGeometry());
    dc.Pop();
}

public StreamGeometry GetHandleGeometry()
    var result = new StreamGeometry();
    result.FillRule = FillRule.EvenOdd;
    using (StreamGeometryContext ctx = result.Open())
    {
        ctx.BeginFigure(new Point(s.Width, 0), true, false);
        ctx.ArcTo(new Point(s.Width - r, r), CS, 90, false, SweepDirection.Clockwise, true, true);
        ctx.LineTo(new Point(r + w, r), true, true);
        ctx.ArcTo(new Point(w, 2 * r), CS, 90, false, SweepDirection.Counterclockwise, true, true);
        .............
    }
    return result;
}

_Mohammad_ wrote:

I'm gonna use VM.

GridViewColumn.CellTemplate

public ObservableCollection<Line> 

public Window1()
{
  InitializeComponent();

  Lines.Add(AddLineStyle(1, 2, 4));
  Lines.Add(AddLineStyle(3, 3, 4));
  Lines.Add(AddLineStyle(3, 2, 4));

  Lines.Add(AddLineStyle(1, 2, 4));
  Lines.Add(AddLineStyle(3, 3, 4));
  Lines.Add(AddLineStyle(3, 2, 4));

  DataContext = Lines;
}

private Line AddLineStyle(int thickness, int array0, int array1)
{
  Line line = new Line();
  line.StrokeThickness = thickness;
  double[] dashArray = new double[2];
  dashArray[0] = array0;
  dashArray[1] = array1;
  line.StrokeDashArray = new DoubleCollection(dashArray);
  return line;
}

<Window x:Class="LineDashStyleSample.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="Window1" Height="300" Width="300">
  <Window.Resources>
    <DataTemplate x:Key="LineCombo">
      <StackPanel Height="20">
        <Line 
          X1="5" 
          Y1="5" 
          X2="190" 
          Y2="5" 
          Stroke="Blue" 
          StrokeThickness="{Binding StrokeThickness}" 
          StrokeDashArray="{Binding StrokeDashArray}" />
      </StackPanel>
    </DataTemplate>
  </Window.Resources>
  <StackPanel>
    <ComboBox 
      Width="200" 
      Height="30" 
      ItemsSource="{Binding}" 
      ItemTemplate="{StaticResource LineCombo}" />
  </StackPanel>
</Window>

public class DashedLineStyle
{
  public int Thickness { get; set; }
  public DoubleCollection StrokeDashArray { get; set; }
}