I am using Silverlight 4 and Expression Blend 4.
I am styling a MenuItem with a path as Icon.
<Style x:Key="1234" TargetType="Controls:MenuItem">
<Setter Property="Header" Value="Cancel" />
<Setter Property="Icon">
<Setter.Value>
<Path Fill="#FF2B2B2B"
Width="14.3775"
Height="14"
Canvas.Left="0.311264"
Canvas.Top="0.500005"
Stretch="Fill"
Data="F1 M 111.2,-85.6L 124.2,-85.6L 124.2,-72.6L 111.2,-72.6L 111.2,-85.6 Z M 117.791,-82.3439L 117.791,-80.4506L 112.685,-80.4506L 112.685,-77.8084L 117.791,-77.8084L 117.791,-75.8748L 121.025,-79.1094L 117.791,-82.3439 Z M 121.657,-84.0222L 121.657,-74.0222L 122.657,-74.0222L 122.657,-84.0222L 121.657,-84.0222 Z " />
</Setter.Value>
</Setter>
</Style>
But this gives an exception expression blend when I try to open this.
Exception Message: Error HRESULT E_FAIL has been returned from a call to a COM component at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cdData)
This also gives exception at runtime when I add this style to a ContextMenu's item.
Put the styling in control template:
<ControlTemplate x:Key="CancelIcon">
<Canvas>
<Path Fill="#FF2B2B2B"
Width="14.3775"
Height="14"
Canvas.Left="0.311264"
Canvas.Top="0.500005"
Stretch="Fill"
Data="F1 M 111.2,-85.6L 124.2,-85.6L 124.2,-72.6L 111.2,-72.6L 111.2,-85.6 Z M 117.791,-82.3439L 117.791,-80.4506L 112.685,-80.4506L 112.685,-77.8084L 117.791,-77.8084L 117.791,-75.8748L 121.025,-79.1094L 117.791,-82.3439 Z M 121.657,-84.0222L 121.657,-74.0222L 122.657,-74.0222L 122.657,-84.0222L 121.657,-84.0222 Z " />
</Canvas>
</ControlTemplate>
Then for menu try the following
<MenuItem Header="Cancel" >
<MenuItem.Icon>
<ContentControl Template="{StaticResource CancelIcon}" />
</MenuItem.Icon>
</MenuItem>
Hope this will work out :-)