How to: Connect to Hierarchical Data
- 6 minutes to read
This example shows how to create a self referencing data structure and display it within the TreeListControl.
Note
A complete sample project is available at https://github.com/DevExpress-Examples/connecting-to-hierarchical-data-e3244.
<Window
xmlns:dxt="http://schemas.devexpress.com/winfx/2008/xaml/grid"
x:Class="TreeList_DataBinding.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<dxt:TreeListControl Name="treeList">
<dxt:TreeListControl.Columns>
<dxt:TreeListColumn FieldName="Name" Header="Employee Name" />
<dxt:TreeListColumn FieldName="Position" />
<dxt:TreeListColumn FieldName="Department" />
</dxt:TreeListControl.Columns>
<dxt:TreeListControl.View>
<dxt:TreeListView Name="treeListView1" AutoWidth="True"
KeyFieldName="ID" ParentFieldName="ParentID" />
</dxt:TreeListControl.View>
</dxt:TreeListControl>
</Grid>
</Window>
using System.Windows;
namespace TreeList_DataBinding {
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window {
public MainWindow() {
InitializeComponent();
treeList.ItemsSource = Stuff.GetStuff();
treeListView1.ExpandAllNodes();
}
}
}
using System;
using System.Collections.Generic;
namespace TreeList_DataBinding {
public class Employee {
public int ID { get; set; }
public int ParentID { get; set; }
public string Name { get; set; }
public string Position { get; set; }
public string Department { get; set; }
}
public static class Stuff {
public static List<Employee> GetStuff() {
List<Employee> stuff = new List<Employee>();
stuff.Add(new Employee() { ID = 1, ParentID = 0, Name = "Gregory S. Price", Department = "", Position = "President" });
stuff.Add(new Employee() { ID = 2, ParentID = 1, Name = "Irma R. Marshall", Department = "Marketing", Position = "Vice President" });
stuff.Add(new Employee() { ID = 3, ParentID = 1, Name = "John C. Powell", Department = "Operations", Position = "Vice President" });
stuff.Add(new Employee() { ID = 4, ParentID = 1, Name = "Christian P. Laclair", Department = "Production", Position = "Vice President" });
stuff.Add(new Employee() { ID = 5, ParentID = 1, Name = "Karen J. Kelly", Department = "Finance", Position = "Vice President" });
stuff.Add(new Employee() { ID = 6, ParentID = 2, Name = "Brian C. Cowling", Department = "Marketing", Position = "Manager" });
stuff.Add(new Employee() { ID = 7, ParentID = 2, Name = "Thomas C. Dawson", Department = "Marketing", Position = "Manager" });
stuff.Add(new Employee() { ID = 8, ParentID = 2, Name = "Angel M. Wilson", Department = "Marketing", Position = "Manager" });
stuff.Add(new Employee() { ID = 9, ParentID = 2, Name = "Bryan R. Henderson", Department = "Marketing", Position = "Manager" });
stuff.Add(new Employee() { ID = 10, ParentID = 3, Name = "Harold S. Brandes", Department = "Operations", Position = "Manager" });
stuff.Add(new Employee() { ID = 11, ParentID = 3, Name = "Michael S. Blevins", Department = "Operations", Position = "Manager" });
stuff.Add(new Employee() { ID = 12, ParentID = 3, Name = "Jan K. Sisk", Department = "Operations", Position = "Manager" });
stuff.Add(new Employee() { ID = 13, ParentID = 3, Name = "Sidney L. Holder", Department = "Operations", Position = "Manager" });
stuff.Add(new Employee() { ID = 14, ParentID = 4, Name = "James L. Kelsey", Department = "Production", Position = "Manager" });
stuff.Add(new Employee() { ID = 15, ParentID = 4, Name = "Howard M. Carpenter", Department = "Production", Position = "Manager" });
stuff.Add(new Employee() { ID = 16, ParentID = 4, Name = "Jennifer T. Tapia", Department = "Production", Position = "Manager" });
stuff.Add(new Employee() { ID = 17, ParentID = 5, Name = "Judith P. Underhill", Department = "Finance", Position = "Manager" });
stuff.Add(new Employee() { ID = 18, ParentID = 5, Name = "Russell E. Belton", Department = "Finance", Position = "Manager" });
return stuff;
}
}
}