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POCaliburn.Micro getting it to bind UserControls in a MainView to their ViewModels
 

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    <p>I have a MainView.xaml, binding to a MainViewModel just fine.</p> <p>What I wanted to try out was splitting a lot of controls I have on my main form into UserControls.</p> <p>Now I put the UserControls inside the Views folder along with the MainView and named them, LeftSideControlView.xaml and RightSideControlView.xaml. The corresponding ViewModels are in the ViewModels folder called LeftSideControlViewModel, etc.</p> <p>I successfully added the usercontrols to the mainview:</p> <pre><code> &lt;Grid&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition /&gt; &lt;ColumnDefinition /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;UserControls:LeftSideControlView cal:Bind.Model="{Binding}" /&gt; &lt;UserControls:RightSideControlView cal:Bind.Model="{Binding}" Grid.Column="1" /&gt; &lt;/Grid&gt; </code></pre> <p>they show up correctly in the designer. Here's one of them in xaml:</p> <pre><code> &lt;UserControl x:Class="TwitterCaliburnWPF.Library.Views.LeftSideControlView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300"&gt; &lt;Grid&gt; &lt;StackPanel&gt; &lt;Label x:Name="Text" FontSize="25" HorizontalAlignment="Center" Margin="5"/&gt; &lt;TextBox x:Name="TextBox1" Width="200" HorizontalAlignment="Center" FontSize="25" Margin="5" /&gt; &lt;Button Width="200" Height="50" Content="Button!" Margin="20" /&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; </code></pre> <p></p> <p>I added the viewmodels and their interfaces inside the AppBootstrapper for Caliburn using Castle.Windsor.</p> <pre><code> public class ApplicationContainer : WindsorContainer { public ApplicationContainer() { // Register all dependencies here Register( Component.For&lt;IWindowManager&gt;().ImplementedBy&lt;WindowManager&gt;().LifeStyle.Is(LifestyleType.Singleton), Component.For&lt;IEventAggregator&gt;().ImplementedBy&lt;EventAggregator&gt;().LifeStyle.Is(LifestyleType.Singleton), Component.For&lt;ILeftSideControlViewModel&gt;().ImplementedBy&lt;LeftSideControlViewModel&gt;(), Component.For&lt;IRightSideControlViewModel&gt;().ImplementedBy&lt;RightSideControlViewModel&gt;() ); RegisterViewModels(); } private void RegisterViewModels() { Register(AllTypes.FromAssembly(GetType().Assembly) .Where(x =&gt; x.Name.EndsWith("ViewModel")) .Configure(x =&gt; x.LifeStyle.Is(LifestyleType.Transient))); } </code></pre> <p>Here's the LeftSideControlViewModel class:</p> <pre><code> using Screen = Caliburn.Micro.Screen; namespace TwitterCaliburnWPF.Library.ViewModels { public class LeftSideControlViewModel : Screen, ILeftSideControlViewModel { private string _text = "Hello from the Left side!"; private string _textBox1 = "Enter Text Here"; public string Text { get { return _text; } } public string TextBox1 { get { return _textBox1; } } } } </code></pre> <p>Here's the MainViewModel and I'm going off what I read in the Caliburn.Micro documention, as before I tried this nothing was specifically in the MainViewModel to tell it to load these 2 controls or show these 2 controls.</p> <p>Still when the app is up and running the values are not binding to the usercontrols from their respective viewmodels.</p> <pre><code>namespace TwitterCaliburnWPF.Library.ViewModels { public class MainViewModel : Conductor&lt;IScreen&gt; { public MainViewModel() { ShowLeftControl(); ShowRightControl(); } private void ShowRightControl() { ActivateItem(new RightSideControlViewModel()); } private void ShowLeftControl() { ActivateItem(new LeftSideControlViewModel()); } public string TextToDisplay { get { return "Coming from the ViewModel!"; } } } } </code></pre>
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