XAML Create ControlTemplate for Map PushPin

Question

I am trying to customize the template for a map pushpin. Not windows 8 mobile, this is just a WPF map control. I can't get XAML to recognize the TargetType. I have to specify the TargetType so I can modify certain elements not found in a generic Control. I've tried several variations. The code exists in a XAML file separate from the WPF UserControl (gets referenced in the MergedDictionaries). Code below:

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:m="clr-namespace:Microsoft.Maps.MapControl.WPF;assembly=Microsoft.Maps.MapControl.WPF">

    <ControlTemplate x:Key="PushPinTemplate" TargetType="m:PushPin" >
        <Grid x:Name="ContentGrid">
            <StackPanel Orientation="Vertical">
                <Grid Background="{TemplateBinding Background}"
                                                HorizontalAlignment="Left"
                                                MinHeight="31"
                                                MinWidth="29">
                    <ContentPresenter HorizontalAlignment="Center"
                                               Content="{TemplateBinding Content}"
                                               ContentTemplate="{TemplateBinding ContentTemplate}"
                                               Margin="4"/>
                </Grid>
                <Polygon Fill="{TemplateBinding Background}"
                                                             Points="0,0 29,0 0,29"
                                                             Width="29"
                                                             Height="29"
                                                             HorizontalAlignment="Left"/>
            </StackPanel>
        </Grid>
    </ControlTemplate>
</ResourceDictionary>

Setting PushPin.Template in C#

pushpin.Template = (ControlTemplate)(Resources["PushPinTemplate"]);

Answer 1

The type name is not written correctly. It is Pushpin, not PushPin:

<ControlTemplate ... TargetType="m:Pushpin">

Answer 2

You have missed the {x:Type } declaration

<ControlTemplate x:Key="PushPinTemplate" TargetType="{x:Type m:PushPin}" >

This means that you are supplying a string to the TargetType instead of a Type

The x:Type markup extension supplies a from-string conversion behavior for properties that take the type Type. The input is a XAML type.

http://msdn.microsoft.com/en-us/library/ms753322%28v=vs.110%29.aspx