Draw Line in WPF Using XAML LineSegment

Mahesh Chand
Jun 21, 2013
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We can use the Line XAML element to draw lines in XAML and the Line class in WPF represents the XAML Line element. Learn here how to draw a Line in WPF. In this article, we will see how to use the LineSegment to draw a line.

Besides drawing lines using the Line element, we can also use the LineSegment element. The LineSegment is useful when a line becomes a part of a graphics path or a larger geometric object.

The LineSegment object represents a line between a start point and an end point. The LineSegment class has one property, Point that represents the end point of the line. The start point is a part of the path.

The following XAML code snippet creates a line segment. A Path object is used to draw an arc by setting a PathGeomerty as Path.Data.

The following code snippet creates a Path and sets a LineSegment as a part of PathFigure.Segments. The output looks like Figure 1.

Figure 1

The following code snippet dynamically creates the line segment shown in Figure 1.

private void CreateLineSegment()
{
  PathFigure pthFigure = new PathFigure();
  pthFigure.StartPoint = new Point(10, 100);
  LineSegment lineSeg = new LineSegment ();
  lineSeg.Point = new Point(200, 100);

PathSegmentCollection myPathSegmentCollection = new PathSegmentCollection();
myPathSegmentCollection.Add(lineSeg);

pthFigure.Segments = myPathSegmentCollection;

    PathFigureCollection pthFigureCollection = new PathFigureCollection();
  pthFigureCollection.Add(pthFigure);
  PathGeometry pthGeometry = new PathGeometry();
  pthGeometry.Figures = pthFigureCollection;

    Path arcPath = new Path();
  arcPath.Stroke = new SolidColorBrush(Colors.Black);
  arcPath.StrokeThickness = 1;
  arcPath.Data = pthGeometry;
  arcPath.Fill = new SolidColorBrush(Colors.Yellow);