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POHow to select an item in LongListSelector using the MVVM-pattern?
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  1. POHow to select an item in LongListSelector using the MVVM-pattern?
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    copied!<p>I'm building application using the MVVM pattern. After clicking on one of the elements I want to see this element's details. I wrote this:</p> <p>XAML</p> <pre><code>&lt;phone:LongListSelector ItemsSource="{Binding Data}" Margin="0,0,0,158" SelectedItem="{Binding SelectedItem}"&gt; &lt;phone:LongListSelector.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;Button&gt; &lt;!-- Command="{Binding ShowDetailsAction}"--&gt; &lt;Button.Template&gt; &lt;ControlTemplate&gt; &lt;TextBlock Text="{Binding Text}"&gt;&lt;/TextBlock&gt; &lt;/ControlTemplate&gt; &lt;/Button.Template&gt; &lt;/Button&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;/phone:LongListSelector.ItemTemplate&gt; &lt;/phone:LongListSelector&gt; </code></pre> <p>ViewModel:</p> <pre><code>public IEnumerable SelectedItem { get { return _itemsControl; } set { if (_itemsControl == value) return; _itemsControl = value; // Test _mss.ErrorNotification("fd"); } } </code></pre> <p>I tried also using a command, which didn't work, too. </p> <p>This was the command part:</p> <pre><code>public ICommand ShowDetailsCommand { get; private set; } public ViewModel() { _loadDataCommand = new DelegateCommand(LoadDataAction); SaveChangesCommand = new DelegateCommand(SaveChangesAction); ShowDetailsCommand = new DelegateCommand(ShowDetailsAction); } private void ShowDetailsAction(object p) { _mss.ErrorNotification("bla bla"); } </code></pre> <p><strong>EDIT</strong></p> <p>ViewModel</p> <pre><code>private IEnumerable _itemsControl; public IEnumerable Data { get { return _itemsControl; } set { _itemsControl = value; RaisePropertyChanged("Data"); } } protected void RaisePropertyChanged(string propertyName) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs(propertyName)); } } </code></pre> <p>Model</p> <pre><code>public string Text { get; set; } public DateTimeOffset Data { get; set; } </code></pre> <p><strong>EDIT2</strong></p> <pre><code>private MobileServiceCollection&lt;ModelAzure, ModelAzure&gt; _items; private readonly IMobileServiceTable&lt;ModelAzure&gt; _todoTable = App.MobileService.GetTable&lt;ModelAzure&gt;(); private async void RefreshTodoItems() { try { _items = await _todoTable.ToCollectionAsync(); } catch (MobileServiceInvalidOperationException e) { _mss.ErrorNotification(e.ToString()); } Data = _items; } </code></pre>
 

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