WPF TreeView Example: Creating a Hierarchical TreeView Using XAML and C#

In this example, we will explore how to create a hierarchical WPF TreeView control using both XAML and C# code. A TreeViewItem is a HeaderedItemsControl that has a Header and an Item collection.

To create a hierarchical TreeView in XAML, you can use the following code:

```

TreeViewItem treeViewItem1_2_1 = new TreeViewItem();

TreeViewItem treeViewItem1_2 = new TreeViewItem();

treeViewItem1_2_1.Header = 'Kailash Behera';

```

This creates a basic structure for our TreeView. However, you can also create the same TreeView in C# code using the following example:

```

TreeViewItem treeViewItem2 = new TreeViewItem();

TreeViewItem treeViewItem1 = new TreeViewItem();

```

As with other WPF controls, the WPF TreeView control can also be created at runtime using C# code.

The WPF TreeView Example

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To define the layout of a TreeViewItem control, you can use HierarchicalDataTemplate objects. You can specify the ItemsSource for the TreeView control as a data source and then specify a HeaderTemplate and ItemTemplate to define the TreeViewItem content.

If an item is not a TreeViewItem control, it is automatically enclosed by a TreeViewItem control when the TreeView control is displayed. A TreeViewItem control is a HeaderedItemsControl that has a Header and an Item collection.

WPF TreeView: Creating a Simple TreeView

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The following example creates a simple TreeView using XAML code:

```

...

```

This code defines a basic structure for our TreeView, with multiple levels of nesting. We can add more items to the TreeViewItem control by adding more child controls.

Loading XML Content into WPF TreeView

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We will also see an example of loading XML content into a WPF TreeView. This involves using LINQ to XML to parse the XML data and then binding it to the TreeView control.

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In this blog, we have introduced the TreeView and demonstrated how to create a TreeView using XAML and C# language. We also explored how to add child items to the TreeViewItem control and load XML content into the TreeView. By following these examples, you should be able to create your own hierarchical WPF TreeView controls.

Treeview wpf example