Display Tooltip in ListBox Items WPF C#

Step 1)  Add .XAML page  and Add List Box

Step 2) Create a Class , Named as Country
It has  2 properties  1.Code 2.Name

 class Country
    {
        public String CountryName { get; set; }
        public String CountryCode { get; set; }
    }

Step 3)  Add Sample data

      void BuildCountries()
        {
            if (countryList.Count == 0)
            {
                countryList.Add(new Country { CountryCode="US",
                    CountryName="United States Of America" });
                countryList.Add(new Country { CountryCode = "IN",
                    CountryName = "INDIA" });
                countryList.Add(new Country { CountryCode = "UK",
                    CountryName = "United Kingdom" });
                countryList.Add(new Country { CountryCode = "AU",
                    CountryName = "Australia" });
                countryList.Add(new Country { CountryCode = "NZ",
                    CountryName = "NewZland" });
            }
        }

Step 4)  Bind ListBox  ItemSource with Country List

 listbox1.ItemsSource = countryList;


Step 4)  in XAML add Item Template to ListBox(Because for each item we need to display tooltip,so we need ItemTemplate)

<ListBox HorizontalAlignment="Left" Height="231" VerticalAlignment="Top" Width="240" x:Name="listbox1">
            <ListBox.ItemTemplate>
                <DataTemplate>
<!-- Each item is textblock  so add TextBlock here and bind to CountryCode-->
                    <TextBlock Text="{Binding Path=CountryCode}">
<!-- TextBlock has tooltip property bind to CountryName -->
                        <TextBlock.ToolTip>
                            <ToolTip Content="{Binding Path=CountryName}"
Background="GreenYellow"
Foreground="White">
</ToolTip>
</TextBlock.ToolTip>
</TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>

That's it run the Application.

Source Code

XAML
<Page x:Class="Wpfone.ListBox_Tooltip_Items"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      mc:Ignorable="d"
      d:DesignHeight="300" d:DesignWidth="300"
    Title="ListBox_Tooltip_Items">

    <Grid>
        <ListBox BorderBrush="AliceBlue" BorderThickness="5" HorizontalAlignment="Left" Height="231" VerticalAlignment="Top" Width="240" x:Name="listbox1">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Path=CountryCode}">
                        <TextBlock.ToolTip>
                            <ToolTip Content="{Binding Path=CountryName}" Background="GreenYellow" Foreground="White"></ToolTip>
                        </TextBlock.ToolTip>
                    </TextBlock>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

    </Grid>
</Page>

.CS file

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Wpfone
{
    /// <summary>
    /// Interaction logic for ListBox_Tooltip_Items.xaml
    /// </summary>
    public partial class ListBox_Tooltip_Items : Page
    {
        List<Country> countryList = new List<Country>();
        public ListBox_Tooltip_Items()
        {
            InitializeComponent();
            this.Loaded += ListBox_Tooltip_Items_Loaded;
        }

        void ListBox_Tooltip_Items_Loaded(object sender, RoutedEventArgs e)
        {
            BuildCountries();
            BindtoListBox();
        }

        void BuildCountries()
        {
            if (countryList.Count == 0)
            {
                countryList.Add(new Country { CountryCode="US",
                    CountryName="United States Of America" });
                countryList.Add(new Country { CountryCode = "IN",
                    CountryName = "INDIA" });
                countryList.Add(new Country { CountryCode = "UK",
                    CountryName = "United Kingdom" });
                countryList.Add(new Country { CountryCode = "AU",
                    CountryName = "Australia" });
                countryList.Add(new Country { CountryCode = "NZ",
                    CountryName = "NewZland" });
            }
        }

        void BindtoListBox()
        {
            try
            {
                listbox1.ItemsSource = countryList;
              //  listbox1.DisplayMemberPath = "CountryCode";
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

    }

    class Country
    {
        public String CountryName { get; set; }
        public String CountryCode { get; set; }
    }
}