XmlDataProvider .... is gone completely in my Xaml file. Why? How many different ways to deal with xml data source through WPF

Question

I followed a procedure described in a book.
1. insert "Inventory.xml" file to a project "WpfXmlDataBinding" .
2. add the XML data source through the data panel of "blend for 2013", named it "InventoryXmlDataStore" and store it in the current document.
3. dragged and droppped the nodes from the Data panel onto the artboard.
Then I checked my Xaml file against the one provided by the book
Xaml file by the book:
<Window.Resources>
<!-- This part is missing in my xaml file --><XmlDataProvider x:Key="InventoryDataSource"
Source="\Inventory.xml"
d:IsDataSource="True"/>
<!-- This part is missing in my xaml file -->
<DataTemplate x:Key="ProductTemplate">
<StackPanel>
<TextBlock Text="{Binding XPath=@ProductID}"/>
<TextBlock Text="{Binding XPath=Cost}"/>
<TextBlock Text="{Binding XPath=Description}"/>
<CheckBox IsChecked="{Binding XPath=HotItem}"/>
<TextBlock Text="{Binding XPath=Name}"/>
</StackPanel>
</DataTemplate>
</Window.Resources>
<Grid>
<ListBox HorizontalAlignment="Left"
ItemTemplate="{DynamicResource ProductTemplate}"
ItemsSource="{Binding XPath=/Inventory/Product}"
Margin="89,65,0,77" Width="200"/>
</Grid>
my Xaml file:
<Window x:Class="WpfXmlDataBinding.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="922" Width="874">
<Window.Resources>
<DataTemplate x:Key="ProductTemplate">
<StackPanel>
<TextBlock Text="{Binding XPath=@ProductID}"/>
<TextBlock Text="{Binding XPath=Cost}"/>
<TextBlock Text="{Binding XPath=Description}"/>
<CheckBox IsChecked="{Binding XPath=HotItem}"/>
<TextBlock Text="{Binding XPath=Name}"/>
</StackPanel>
</DataTemplate>
</Window.Resources>
<Grid DataContext="{Binding Source={StaticResource InventoryXmlDataStore}}">
<ListBox HorizontalAlignment="Left" Height="370"
ItemTemplate="{DynamicResource ProductTemplate}"
ItemsSource="{Binding XPath=/Inventory/Product}"
Margin="65,55,0,0" VerticalAlignment="Top" Width="270"/>     
    </Grid>
</Window>
All looks quite the same except the <XmlDataProvider ....> part under <Window.Resources>, which is gone completely in my Xaml file.
1, Why?
2, How many different ways to deal with xml data source through WPF?
Thanks, guys.
(ps My "WpfXmlDataBinding" runs without problem through.)

Answer 1

Never do yourself down Richard.
Leave that to other people.
It's quite common for smart developers to think they're not as good as they are.
I coach a fair bit and it's a surprisingly common feeling.
And to repeat.
Never use anything ends .. provider.  They're for trivial demo apps.  Transform xml into objects and use them.  Write it back as xml.  Preferably, use a database.
You want to read a little mvvm theory first.
http://en.wikipedia.org/wiki/Model_View_ViewModel
Whatever you do, don't read Josh Smiths explanation.  I used to recommend it but it confuses the heck out newbies. Leave that until later.
Laurent Bugnion did a great presentation at mix10.  Unfortunately that doesn't seem to be working on the MS site, but I have a copy.  Download and watch:
http://1drv.ms/1IYxl3z
I'm writing an article at the moment which is aimed at beginners.
http://social.technet.microsoft.com/wiki/contents/articles/30564.wpf-uneventful-mvvm.aspx
The sample is just a collection of techniques really.
I have a sample which involves no real data but is intended to illustrate some aspects of how viewmodels "do stuff" and how you use datatemplates to generate UI.
I can't remember if I recommended it previously to you:
https://gallery.technet.microsoft.com/WPF-Dialler-simulator-d782db17
And I have working samples which are aimed at illustrating line of business architecture.  This is an incomplete step by step series but I  think more than enough to chew on once you've done the previous stuff.
http://social.technet.microsoft.com/wiki/contents/articles/28209.wpf-entity-framework-mvvm-walk-through-1.aspx
The write up for step2 is work in progress.
https://gallery.technet.microsoft.com/WPF-Entity-Framework-MVVM-78cdc204
Hope that helps.
Recent Technet articles: Property List Editing;
Dynamic XAML