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POCombobox Binding in Windows Store using Caliburn
 

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  1. POCombobox Binding in Windows Store using Caliburn
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    <p>I'm trying to bind a combobox using Caliburn and the following code:</p> <p><em><strong>yyyView.xaml</em></strong></p> <pre><code> &lt;ComboBox x:Name="Filters"&gt;&lt;/ComboBox&gt; </code></pre> <p><em><strong>yyyViewModel.xaml</em></strong></p> <pre><code>private string selectedFilter; public BindableCollection&lt;string&gt; Filters { get { return new BindableCollection&lt;string&gt;( new string[]{ "All", "Last Month", "Last Week", "Yesterday" }); } } public string SelectedFilter { get { return selectedFilter; } set { selectedFilter = value; NotifyOfPropertyChange(() =&gt; SelectedFilter); } } </code></pre> <p>Using this code, I'm getting an <strong><em>ArgumentNullException</em></strong> on <strong><em>App.xaml.cs</em></strong> on the <strong><em>GetInstance</em></strong> method.</p> <p>I'm new to MVVM, Caliburn and XAML, but I've read somewhere there were some kind of behaviors (<strong>Blend Behaviors</strong>, I believe) dropped in WinRT development.</p> <p>Is that the problem? How can I solve this?</p> <p>Thank you</p> <p>EDIT:</p> <p><em><strong>App.xaml.cs</em></strong></p> <pre><code>protected override void Configure() { LogManager.GetLog = type =&gt; new DebugLogger(type); container = new WinRTContainer(); container.RegisterWinRTServices(); container.PerRequest&lt;aaaViewModel&gt;(); container.PerRequest&lt;xxxViewModel&gt;(); container.PerRequest&lt;yyyViewModel&gt;(); container.PerRequest&lt;zzzViewModel&gt;(); } </code></pre> <p><em><strong>App.xaml</em></strong></p> <pre><code>&lt;caliburn:CaliburnApplication x:Class="yyyStoreApp.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:yyyApp" xmlns:caliburn="using:Caliburn.Micro" xmlns:converters="using:yyyApp.Converters" RequestedTheme="Light"&gt; &lt;Application.Resources&gt; &lt;ResourceDictionary&gt; &lt;ResourceDictionary.MergedDictionaries&gt; &lt;ResourceDictionary Source="Resources/CustomStyles.xaml" /&gt; &lt;ResourceDictionary Source="Resources/StandardStyles.xaml"/&gt; &lt;/ResourceDictionary.MergedDictionaries&gt; &lt;converters:ImageFilePathConverter x:Key="ImageFilePath"/&gt; &lt;/ResourceDictionary&gt; &lt;/Application.Resources&gt; &lt;/caliburn:CaliburnApplication&gt; </code></pre>
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    1. COCan you post your App.xaml and any relevant code-behind? It sounds like something is not being constructed correctly, your Caliburn binding notwithstanding.
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      1. POCombobox Binding in Windows Store using Caliburn
      1. USrrhartjr
    2. COI haven't changed App.xaml for this View and other Views of the App are working. On the code behind I have registered the ViewModel: `container.PerRequest<yyyViewModel>();` I can enter the view and see other binded elements, only the combobox isn't working properly. It's empty and the exception is thrown when I click it.
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      1. USSilva
 

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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.

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