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POBind to ListBox selectedItem inside TabControl
 

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  1. POBind to ListBox selectedItem inside TabControl
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    <p>Okay, I got this Tabcontrol containing a ListBox. Now my problem it that I would like to bind <code>&lt;TextBox x:Name="DetailTextBox" Text="{Binding Detail}"/&gt;</code> to the selectedItem in the listbox and show the <code>Detail</code> property value. Note that the TextBox is not part of the TabControl, but is in another Column. </p> <p>I can't quite figure out, how to handle binding, when there a multiple ListBox'es, one in each TabControl Item.</p> <p>My classes</p> <pre><code>public class TabViewModel { public string Name { get; set; } public ObservableCollection&lt;TabItemViewModel&gt; Collection { get; set; } } public class TabItemViewModel { public string Title { get; set; } public string Detail { get; set; } } </code></pre> <p>public MainWindow()</p> <pre><code> var tabViewModels = new ObservableCollection&lt;TabViewModel&gt;(); tabViewModels.Add(new TabViewModel{Name = "Tab 1", Collection = new ObservableCollection&lt;TabItemViewModel&gt;{new TabItemViewModel{Detail = "Detail 1.1", Title = "Title 1.1"}, new TabItemViewModel{Detail = "Detail 2.2", Title = "Title 2.2"}}}); tabViewModels.Add(new TabViewModel { Name = "Tab 2", Collection = new ObservableCollection&lt;TabItemViewModel&gt; { new TabItemViewModel { Detail = "Detail 2.1", Title = "Title 2.1" }, new TabItemViewModel { Detail = "Detail 2.2", Title = "Title 2.2" } } }); tabViewModels.Add(new TabViewModel { Name = "Tab 3", Collection = new ObservableCollection&lt;TabItemViewModel&gt; { new TabItemViewModel { Detail = "Detail 3.1", Title = "Title 3.1" }, new TabItemViewModel { Detail = "Detail 3.2", Title = "Title 3.2" } } }); DataContext = tabViewModels; </code></pre> <p>MainWindow.xaml.</p> <pre><code>&lt;Grid&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="50*"/&gt; &lt;ColumnDefinition Width="50*"/&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;TabControl ItemsSource="{Binding}" Grid.Column="0" SelectedIndex="0"&gt; &lt;TabControl.ItemContainerStyle&gt; &lt;Style TargetType="{x:Type TabItem}"&gt; &lt;Setter Property="Header"&gt; &lt;Setter.Value&gt; &lt;Binding Path="Name"/&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/TabControl.ItemContainerStyle&gt; &lt;TabControl.ContentTemplate&gt; &lt;DataTemplate&gt; &lt;ListBox ItemsSource="{Binding Collection}"&gt; &lt;ListBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;Label Content="{Binding Title}" /&gt; &lt;/DataTemplate&gt; &lt;/ListBox.ItemTemplate&gt; &lt;/ListBox&gt; &lt;/DataTemplate&gt; &lt;/TabControl.ContentTemplate&gt; &lt;/TabControl&gt; &lt;StackPanel Grid.Column="1"&gt; &lt;TextBox x:Name="DetailTextBox" Text="{Binding Detail}"/&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; </code></pre> <p><img src="https://i.stack.imgur.com/CewUo.png" alt="enter image description here"></p> <p><strong>EDIT</strong></p> <p><strong>Temp Solution</strong> Found a way to make it work, but I'm still looking for a pure Xaml solution. Added a SelectionChange event</p> <pre><code> &lt;ListBox ItemsSource="{Binding Collection}" SelectionChanged="ListBox_SelectionChanged"&gt; private void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e) { if (e.AddedItems.Count &gt; 0) DetailTextBox.DataContext = (TabItemViewModel) e.AddedItems[0]; } </code></pre>
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    1. USgulbaek
    1. USgulbaek
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    1. COuse a converter OR sync your View selections to your ViewModels
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      1. USJake Berger
    2. COCan you direct me to some info about doing that?
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      1. USgulbaek
    3. COto which option?
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      1. POBind to ListBox selectedItem inside TabControl
      1. USJake Berger
 

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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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