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POPanorama Binding on WP7, Items collection must be empty before using ItemsSource
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  1. POPanorama Binding on WP7, Items collection must be empty before using ItemsSource
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    copied!<p>i keep getting this error: Items collection must be empty before using ItemsSource, when i attempt to bind data to a Panorama control. below is my xaml snippet.</p> <pre><code>&lt;controls:Panorama x:Name="panorama"&gt; &lt;controls:PanoramaItem &gt; &lt;StackPanel&gt; &lt;TextBlock Text="{Binding Text}"/&gt; &lt;/StackPanel&gt; &lt;/controls:PanoramaItem&gt; &lt;/controls:Panorama&gt; </code></pre> <p>in my code behind (xaml.cs), i do something like this:</p> <pre><code>protected override void OnNavigatedTo(NavigationEventArgs e) { string id = NavigationContext.QueryString["id"]; ObservableCollection&lt;MyObject&gt; list = DataAccessService.get(id); panorama.ItemsSource = list; base.OnNavigatedTo(e); } </code></pre> <p>note that MyObject has a Text property. any help is appreciated.</p> <p>after modifying it per the link below, the same exception is still thrown.</p> <pre><code>&lt;controls:Panorama x:Name="panorama"&gt; &lt;controls:Panorama.HeaderTemplate&gt; &lt;DataTemplate&gt; &lt;TextBlock Text="{Binding Header}"/&gt; &lt;/DataTemplate&gt; &lt;/controls:Panorama.HeaderTemplate&gt; &lt;controls:PanoramaItem &gt; &lt;DataTemplate&gt; &lt;StackPanel&gt; &lt;TextBlock Text="{Binding Text}"/&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;/controls:PanoramaItem&gt; &lt;/controls:Panorama&gt; </code></pre> <p>finally, after continuing further with the user below's help, this is the solution that got rid of the exception.</p> <pre><code>&lt;controls:Panorama x:Name="panorama"&gt; &lt;controls:Panorama.HeaderTemplate&gt; &lt;DataTemplate&gt; &lt;TextBlock Text="{Binding Header}"/&gt; &lt;/DataTemplate&gt; &lt;/controls:Panorama.HeaderTemplate&gt; &lt;controls:Panorama.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;StackPanel&gt; &lt;TextBlock Text="{Binding Text}"/&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;/controls:Panorama.ItemTemplate&gt; &lt;/controls:Panorama&gt; </code></pre>
 

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