WPF

xmlns:local="clr-namespace:TreeView"

namespace TreeView
{
    public partial class MainWindow : Window
    {
        List<Person> persons;

        public MainWindow()
        {
            InitializeComponent();

            persons = new List<Person>();

            Person p1 = new Person("Person1");
            p1.Children.Add(new Person("Children1"));
            p1.Children.Add(new Person("Children2"));
            persons.Add(p1);

            persons.Add(new Person("Person2"));

            Person p3 = new Person("Person3");
            p3.Children.Add(new Person("Children1"));
            persons.Add(p3);

            persons.Add(new Person("Person4"));
            persons.Add(new Person("Person5"));

            tvTree.ItemsSource = persons;
        }
    }

    public class Person
    {
        List<Person> children = new List<Person>();
        string name;

        public Person(string name)
        {
            this.name = name;
        }

        public string Name
        {
            get { return name; }
        }

        public List<Person> Children
        {
            get { return children; }
            set { children = value; }
        }
    }
}

<TreeView Name="tvTree">
    <TreeView.ItemTemplate>
        <HierarchicalDataTemplate 
            ItemsSource="{Binding Children}"  
            DataType="{x:Type local:Person}">
            <Grid>
                <TextBlock Text="{Binding Name}" />
            </Grid>
        </HierarchicalDataTemplate>
    </TreeView.ItemTemplate>
</TreeView>

namespace TreeView
{
    public partial class MainWindow : Window
    {
        List<Person> persons;

        public MainWindow()
        {
            InitializeComponent();

            persons = new List<Person>();

            Person p1 = new Person("Person1");
            Person c1 = new Person("Children1");

            c1.Items.Add(new Item("Telephone"));
            c1.Items.Add(new Item("Game console"));

            p1.Children.Add(c1);
            p1.Children.Add(new Person("Children2"));

            p1.Items.Add(new Item("Car"));
            p1.Items.Add(new Item("Computer"));

            persons.Add(p1);
            tvTree.ItemsSource = persons;
        }
    }

    public class Person
    {
        List<Person> children = new List<Person>();
        List<Item> items = new List<Item>();
        string name;

        public Person(string name)
        {
            this.name = name;
        }

        public string Name
        {
            get { return name; }
        }

        public List<Person> Children
        {
            get { return children; }
            set { children = value; }
        }

        public List<Item> Items
        {
            get { return items; }
            set { items = value; }
        }
    }

    public class Item
    {
        string type;

        public Item(string type)
        {
            this.type = type;
        }

        public string Type
        {
            get { return type; }
        }
    }
}

<Window x:Class="TreeView.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:TreeView"
        Title="MainWindow" Height="350" Width="525">
    
    <Grid>
        <TreeView Name="tvTree" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="5,5,0,0" Width="300" Height="300">
            <TreeView.ItemTemplate>
                <HierarchicalDataTemplate ItemsSource="{Binding Children}"  DataType="{x:Type local:Person}">
                    <Grid>
                        <TextBlock Text="{Binding Name}" />
                    </Grid>
                </HierarchicalDataTemplate>
            </TreeView.ItemTemplate>
        </TreeView>
    </Grid>
</Window>

Person1
   Chilrden1
      Telephone
      Game console
   Chilrden2
   Car
   Computer

jadughar wrote:

I want to notify the page (somehow, through event) that the "SelectedValue" is changed. How can i???

public event EventHandler<EventArgs> SelectedValueChanged;

object _selectedValue;
public object SelectedValue
{
    get { return _selectedValue; }
    set
    {
        if (_selectedValue != value)
        {
            _selectedValue = value;

            EventHandler<EventArgs> evnt = SelectedValueChanged;
            if (evnt != null)
                evnt(this, new EventArgs());
        }
    }
}

Mark Salsbery
Microsoft MVP - Visual C++

jadughar wrote:

I would like to post my code and want to know what was wrong.

Mark Salsbery
Microsoft MVP - Visual C++

public event RoutedEventHandler SomethingHappened;

int progressivoSelezionato = 0;

public int valoreSelezionato
{
    get { return this.progressivoSelezionato; }
    set
    {
        this.progressivoSelezionato = value;


        RoutedEventHandler myHandler = SomethingHappened;

        if (myHandler != null)
            myHandler(this, new RoutedEventArgs());

        //this.selectionChanged(this, new EventArgs());
    }
}

jadughar wrote:

My sample is giving error.

jadughar wrote:

what's the difference between RoutedEvent and the Event(that u used in ur sample) ??

Mark Salsbery
Microsoft MVP - Visual C++

jadughar wrote:

i was getting error at run time, no errors while compile time ..

Mark Salsbery
Microsoft MVP - Visual C++