CODEWITHSUNDEEP
c#wpfxamltreeviewhierarchicaldatatemplate
IBRA
IBRA

Reputation: 1782

WPF: Add multiple level with different types items to TreeView

I have a class (ClassA) that contains two different types of lists, List of ClassBTypes and List of ClassC. ClassBTypes has its own List of ClassB.

I want to achieve the below structure for the TreeView

-- ClassAName   
-- -- ClassBType1Name  
-- -- -- ClassB1Name  
-- -- -- ClassB2Name     
-- -- ClassBType2Name  
-- -- -- ClassB1Name  
-- -- -- ClassB2Name  
-- -- ClassC1Name  
-- -- ClassC2Name

I managed to get the tree to draw the ClassA and ClassB, but couldn't figure out how to add ClassC to the Tree resources.
Please check the below source code.

Test.xaml.cs 

public partial class Test : Window {    
    InitializeComponent();
    var a = new List<ClassA>{new ClassA(), new ClassA()};
    treeView.ItemsSource = a;
}

C# classes: 

public class ClassA{    
    // initiate obj    
    public string Name {get; set;}     
    public List<ClassBTypes> Btypes {get; set;}     
    public List<ClassC> C {get; set;}    
}    
public class ClassBTypes{    
    public string Name {get; set;}    
    public List<ClassB> B {get; set;}   
}    
public class ClassB{    
    public string Name {get; set;}    
}     
public class ClassC{   
    public string Name {get; set;}   
}

xaml code: 

<Window.Resources>
    <DataTemplate x:Key="aKey">
        <TextBlock Text="{Binding Name}"></TextBlock>
    </DataTemplate>
    <HierarchicalDataTemplate x:Key="bKey"
               ItemsSource="{Binding B}"
               ItemTemplate="{StaticResource aKey}">
        <TextBlock Text="{Binding Name}" />
    </HierarchicalDataTemplate>
    <HierarchicalDataTemplate x:Key="bTypeKey"
               ItemsSource="{Binding Btypes}"
               ItemTemplate="{StaticResource bKey}">
        <TextBlock Text="{Binding Name}" />
    </HierarchicalDataTemplate>
</Window.Resources>   
.....     
<Grid>
   <TreeView Name="treeView" ItemTemplate="{StaticResource bTypeKey}" />
</Grid>

How to add the ClassC list from ClassA obj, I've added the below code to <Window.Resources> but how can I added it to treeView resources.

<HierarchicalDataTemplate x:Key="bTypeKey"
         ItemsSource="{Binding Btypes}"
         ItemTemplate="{StaticResource bKey}">
    <TextBlock Text="{Binding Name}" />
</HierarchicalDataTemplate>

Upvotes: 3

Views: 3132

Answers (1)

IBRA
IBRA

Reputation: 1782

I fixed this by combine the two types of lists to CompositeCollection.
Check this answer for more details.

Upvotes: 1

Related Questions