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POWPF Complex Hierarchical data template
 

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    <p>I'm looking at a complex structure and I can't seem to find a way to display it...</p> <p>My situation:</p> <p>Class: Milestone has 2 lists inside, a list of other submilestones and a list of activities.</p> <p>So structured could be like:</p> <p>M1</p> <ul> <li>Milestones <ul> <li>SubMilestone <ul> <li>Milestones</li> <li>Activities</li> </ul></li> <li>Submilestone</li> </ul></li> <li>Activities</li> </ul> <p>Anybody has any idea's on how to create this? or could boost me into a direction?</p> <p><strong>ANSWER to my problem</strong></p> <pre><code>&lt;TreeView ItemsSource="{Binding Path=Project.TrackList}"&gt; &lt;TreeView.Resources&gt; &lt;HierarchicalDataTemplate DataType="{x:Type deto:Track}" ItemsSource="{Binding Path=FaseList}"&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;TextBlock Text="{Binding Path=TrackType}" /&gt; &lt;/StackPanel&gt; &lt;/HierarchicalDataTemplate&gt; &lt;HierarchicalDataTemplate DataType="{x:Type deto:Fase}" ItemsSource="{Binding Path=MilestoneList}"&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;TextBlock Text="{Binding Path=FaseType}" /&gt; &lt;/StackPanel&gt; &lt;/HierarchicalDataTemplate&gt; &lt;HierarchicalDataTemplate DataType="{x:Type deto:Milestone}" ItemsSource="{Binding Converter={StaticResource MConverter}}"&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;TextBlock Text="{Binding Path=Description}" /&gt; &lt;/StackPanel&gt; &lt;/HierarchicalDataTemplate&gt; &lt;HierarchicalDataTemplate DataType="{x:Type deto:Activity}" ItemsSource="{Binding Path=ActivityList}"&gt; &lt;StackPanel Orientation="Horizontal"&gt; &lt;TextBlock Text="{Binding Path=Description}" /&gt; &lt;/StackPanel&gt; &lt;/HierarchicalDataTemplate&gt; &lt;/TreeView.Resources&gt; &lt;/TreeView&gt; </code></pre> <p>And the converter:</p> <pre><code>public class MilestoneConverter : IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { var m = value as Milestone; CompositeCollection collection = new CompositeCollection(); collection.Add(new CollectionContainer() { Collection = m.MilestoneList }); collection.Add(new CollectionContainer() { Collection = m.ActivityList }); return collection; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } #endregion } </code></pre>
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