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POPRISM-MVVM, ItemsControl problem with View injection
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  1. POPRISM-MVVM, ItemsControl problem with View injection
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    copied!<p>I need to display multiple instances of a basketDetailsView.xaml within a region placed in basketView.xaml, but I'm getting the following errormessage when i debug my code:</p> <p>"An exception occurred while creating a region with name 'basketRegion'. The exception was: System.InvalidOperationException: ItemsControl's ItemsSource property is not empty. This control is being associated with a region, but the control is already bound to something else. If you did not explicitly set the control's ItemSource property, this exception may be caused by a change in the value of the inherited RegionManager attached property"</p> <p>The basketView XAML contains an ItemsControl tag defined like this </p> <pre><code>&lt;ItemsControl x:Name="basketItemsControl"cal:RegionManager.RegionName="basketRegion"/&gt; </code></pre> <p>The view also has a listbox where I can uncheck/check the BasketDetailsViews I want to look at:</p> <pre><code>&lt;ListBox x:Name="basketListBox" ItemsSource="{Binding basket}" MinWidth="200"&gt; &lt;ListBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;CheckBox commands:Checked1.Command="{Binding DataContext.CheckCommand,ElementName=basketListBox}" Content="{Binding basketName}" &gt;&lt;/CheckBox&gt; &lt;/DataTemplate&gt; &lt;/ListBox.ItemTemplate&gt; &lt;/ListBox </code></pre> <p>When I run without debugging it executes fine and I can pop in/out the different basketDetailsViews, but when debugging the above mentioned error shows. What Am i doing wrong?</p> <p>EDIT:</p> <pre><code>Public Sub AddCageDetailsView(ByVal BasketName As String) Dim basketRegion = _RegionManager.Regions("basketRegion") Dim view = _Container.Resolve(Of basketDetailsView)() Dim viewmodel = _Container.Resolve(Of basketDetailsViewModel)() view.ApplyModel(viewmodel) basketRegion.Add(view) End Sub </code></pre> <p>So basketRegion is the region in my ItemsControl as specified above. This region is supposed to hold my basketDetailsViews..</p>
 

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