Data Property

Gets or sets a Geometry that specifies the shape to be drawn.

XAML
<object>
  <object.Data>
    simpleOrCompositeGeometry
  </object.Data>
</object>
-or-
<object Data = "inlinePathSyntax" .../>
Scripting
value = object.Data
object.Data = value

XAML Values

simpleOrCompositeGeometry A single object element that derives from Geometry. This can be one of the following:
inlinePathSyntax See Path Markup Syntax.

Property Value

Geometry

A description of the shape to be drawn.

This property is read/write. The default value is null.

Remarks

For documentation on the XAML string format to use for inlinePathSyntax, see Path Markup Syntax.

To draw simple shapes, use the EllipseGeometry, LineGeometry, and RectangleGeometry objects. To draw curves, arcs, or complex shapes, use the PathGeometry object. To create a composite geometry, use a GeometryGroup.

Because a GeometryGroup is itself a Geometry, you can either specify single geometries or multiple geometries to populate the Path.Data property element in XAML. In the single geometry child case, there will be no GeometryGroup collection, and the value of Data will be the single geometry. If you specify multiple geometries, the value of Data will be a GeometryGroup whose Children will contain each of the geometries defined as child elements in XAML.

Examples

The following example uses a Path to draw an ellipse.

XAML
<Canvas  
  xmlns="http://schemas.microsoft.com/client/2007" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> 
  
  <Path Fill="Gold" Stroke="Black" StrokeThickness="1">
    <Path.Data>
      <EllipseGeometry Center="50,50" RadiusX="50" RadiusY="50" />
    </Path.Data>
  </Path> 
</Canvas>

The following illustration shows the rendered Path.

Rendered path

In Extensible Application Markup Language (XAML), you may also use a special abbreviated syntax as the value for the Data property. The following example uses this abbreviated syntax to specify the shape of a Path.

XAML
<Canvas 
  xmlns="http://schemas.microsoft.com/client/2007" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  
  <Path Stroke="DarkGoldenRod" StrokeThickness="3"
    Data="M 100,200 C 100,25 400,350 400,175 H 280" />
</Canvas>

The following illustration shows the rendered Path.

Path illustration

The Data attribute string begins with the "move to" command, indicated by M, which establishes a start point for the path in the coordinate system of the Canvas. Path data parameters are case-sensitive. The capital M indicates an absolute location for the new current point. A lowercase m would indicate relative coordinates. The first segment is a cubic Bezier curve beginning at (100,200) and ending at (400,175), drawn using the two control points (100,25) and (400,350). This segment is indicated by the C command in the Data attribute string. Again, the capital C indicates an absolute path; the lowercase c would indicate a relative path.

The second segment begins with an absolute horizontal "line to" command H, which specifies a line drawn from the preceding subpath's endpoint (400,175) to a new endpoint (280,175). Because it is a horizontal "line to" command, the value specified is an x-coordinate.

For the complete path syntax, see Path Markup Syntax.

Applies To

Path

See Also

Silverlight Geometries Overview
Path Markup Syntax
PathGeometry

Community Additions

Show: