如何确定是否正确加载了ResourceDictionary

我如何判断(通过调试器判断我的应用程序资源是否正确加载)。我试过了(在F)

type MyApp() as this =
    inherit Application() 
        do Application.LoadComponent(this, new System.Uri("/FSSilverlightApp;component/App.xaml", System.UriKind.Relative))  

    let cc = new ContentControl()

    let mainGrid : Grid = loadXaml("MainWindow.xaml")
    let siteTemplate : Grid = mainGrid 

    let txt : TextBlock = siteTemplate ? txt

    do
        this.Startup.Add(this.startup)
        let mutable s = "Items: "
        s <- s + this.Resources.Count.ToString()

它返回一个零的计数。尽管我非常确定应用程序正在加载资源,因为如果我更改app.xaml中的路径,我会在运行时得到异常。其他Re、Lavent片段包括:

我有以下app.xaml

<Application xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
             x:Class="Module1.MyApp">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="/FSSilverlightApp;component/TransitioningFrame.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

内容模板:

<

ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"  
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <ControlTemplate x:Key="TransitioningFrame" TargetType="navigation:Frame">
        <Border Background="{TemplateBinding Background}"
                BorderBrush="{TemplateBinding BorderBrush}"
                BorderThickness="{TemplateBinding BorderThickness}"
                HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
            <ContentPresenter Cursor="{TemplateBinding Cursor}"
                          HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                          Margin="{TemplateBinding Padding}"
                          VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                          Content="{TemplateBinding Content}"/>
        </Border>
    </ControlTemplate>
</ResourceDictionary>