WP7 PathGeometry error

Question

I'm having a strange error with a simple PathGeometry object and I can't seem to figure it out. I would appreciate it if someone could explain to me why this doesn't work.

Here is an example of a working Path, which draws a small triangle:

<Path Data="M 8,4 L 12,12 4,12 8,4 Z" Stroke="White" />

Here is an example of a Path that does not seem to work for me:

<Path Stroke="White">
    <Path.Data>
        <PathGeometry Figures="M 8,4 L 12,12 4,12 8,4 Z" />
    </Path.Data>
</Path>

The string in the Data and Figures properties are identical, yet the latter example results in the exception:

Invalid attribute value M 8,4 L 12,12 4,12 8,4 Z for property Figures.

What I would like to do ultimately is to put the PathGeometry into a ResourceDictionary and reference it as a {StaticResource} so I can re-use my shapes.

Edit:

My solution was to instead of trying to reference a PathGeometry with a StaticResource, to instead reference a string resource.

<sys:String x:Key="TriangleShape">M 8,4 L 12,12 4,12 8,4 Z</sys:String>
...
<Path Data={StaticResource TriangleShape}" />

Answer 1

From what I can tell, path markup syntax, as used by Path.Data, isn't supported by PathGeometry. The PathGeometry.Figures property has to be a collection of PathFigure objects instead.

To specify the above shape in this way, you could do something like the following:

    <Path Stroke="White">
        <Path.Data>
            <PathGeometry>
                <PathGeometry.Figures>
                    <PathFigure StartPoint="8,4">
                        <PathFigure.Segments>
                            <LineSegment Point="12,12" />
                            <LineSegment Point="4,12" />
                            <LineSegment Point="8,4" />
                        </PathFigure.Segments>
                    </PathFigure>
                </PathGeometry.Figures>
            </PathGeometry> 
        </Path.Data>
    </Path>

Disclaimer: I haven't tried this on WP7, only on Silverlight on my PC.