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    <p>Your <code>MainPageViewModel</code> should hold a collection of what pages are in the TabControl, and the SelectedPage. It should also contain an <code>ICommand</code> which will change the current page.</p> <p>For example,</p> <pre><code>// These should be full properties that raise PropertyChange notifications public ObservableCollection&lt;IPageViewModel&gt; Tabs { get; set; } public int SelectedTabIndex { get; set; } private ICommand ChangeTabIndexCommand { get; set; } MainPageViewModel() { Tabs = new ObservableCollection&lt;IPageViewModel&gt;(); Tabs.Add(new Page1ViewModel()); Tabs.Add(new Page2VieWModel()); SelectedTab = 0; ChangeTabIndexCommand = new RelayCommand&lt;int&gt;(ChangeTab); } void ChangeTab(int newIndex) { if (newIndex &gt;= 0 &amp;&amp; newIndex &lt; Tabs.Count()) SelectedTab = newIndex; } </code></pre> <p>Your MainView would look like this:</p> <pre><code>&lt;TabControl ItemsSource="{Binding Tabs}" SelectedIndex="{Binding SelectedIndex}" /&gt; </code></pre> <p>If you are using Silverlight 5, I believe you can use implicit <code>DataTemplates</code>, however if not you'll have to use something like a <code>DataTemplateSelector</code> or a <code>Converter</code> to tell Silverlight how to draw each ViewModel. I usually use <a href="http://msdn.microsoft.com/en-us/library/gg406140.aspx" rel="nofollow">Microsoft PRISM's</a> <code>DataTemplateSelector</code></p> <p>There are a number of ways to hook up the <code>ChangeTabIndexCommand</code>. My preference is to use some kind of <a href="http://rachel53461.wordpress.com/2011/06/05/communication-between-viewmodels-with-mvvm/" rel="nofollow">Messaging System</a>, however you could also hook up the event in the Constructor of the MainViewModel.</p>
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    1. POHow to bind and change pages in a tab control with a viewmodel?
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    1. POHow to bind and change pages in a tab control with a viewmodel?
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    1. CORachel, Thanks for your answer, its userful for me. And there are some others questions: How to show different page in a TabItem, and how to public the event incude in the page(not the main page) to load the other page in the same TabItem. Thanks.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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