WPF - Transfer Data From One List To Another List

In this article I am going to show how we can transfer data from one list to another list and how we can remove item from the list. In this article I am using 2 List box and two button. One to Add Item from left List to Right List and second is Remove button to remove item from right List to left List.
I am using a class City to bind Left List Box.

Below is my Out put

Here I am Binding Left List Box with some cities name..

Image 1.

If you don't select any city name and click on Add then a Message box will appear..

Image 2.

Now Select an Item and click on Add...

Image 3.

Now If you want to remove an item from right list box and you click on Remove without selecting any item...then

Image 4.

Now Select an item and click on remove ....

Image 5.

Below is my XAML Code...

<Window x:Class="TransferDataFromOneList2AnotherList.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Transfer Item From  One List 2 Another List" Height="310" Width="717" Background="LightBlue">
    <Grid>
        <ListBox Margin="91,32,0,40" Name="LeftListBox" HorizontalAlignment="Left" Width="168" Background="AntiqueWhite" />
        <ListBox Margin="0,31,89,41" Name="RightListBox" HorizontalAlignment="Right" Width="176" Background="AntiqueWhite" />
        <Button Name="AddButton" Height="27" Margin="292,97,294,0" VerticalAlignment="Top"
        Click="AddButton_Click">Add &gt;&gt;</Button>
        <Button Name="RemoveButton" Margin="292,0,294,100"
        Click="RemoveButton_Click" Height="28" VerticalAlignment="Bottom">&lt;&lt; Remove</Button>
    </Grid>
</Window>
 

Below is my City Class...

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text; 

namespace TransferDataFromOneList2AnotherList
{
   public class City
    {
        public string CityName
        {
            get;
            set;
        }       
    }
}

My XAML.cs code:

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 TransferDataFromOneList2AnotherList
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>

    public partial class Window1 : Window
    {
        List<City> CityList;
        public Window1()
        {
            InitializeComponent();
            BindLeftList();
        } 

        int currentItemIndex;
        string currentItemText; 

        private void BindLeftList()
        {
            CityList = new List<City> {
            new City{CityName="Noida"},
            new City{CityName="Delhi"},
            new City{CityName="Saharanpur"},
            new City{CityName="Jaspur"},
            new City{CityName="Moradabad"},
            new City{CityName="Agra"},
            new City{CityName="Bariely"},
            new City{CityName="Kanpur"},
            new City{CityName="Greater Noida"}
            };

            LeftListBox.ItemsSource = CityList.Select(x => x.CityName);
        } 

        private void AddButton_Click(object sender, RoutedEventArgs e)
        {
            if (LeftListBox.SelectedIndex > -1)
            {
                currentItemText = LeftListBox.SelectedValue.ToString();
                currentItemIndex = LeftListBox.SelectedIndex;
 
                RightListBox.Items.Add(currentItemText);
                if (CityList != null)
                {
                    CityList.RemoveAt(currentItemIndex);
                    LeftListBox.ItemsSource = null;
                    LeftListBox.ItemsSource = CityList.Select(x => x.CityName);
                }
            }
            else
            {
                System.Windows.MessageBox.Show("Please Select An Item To Remove");
            }
        }
 

        private void RemoveButton_Click(object sender, RoutedEventArgs e)
        {
            if (RightListBox.SelectedIndex > -1)
            {
                currentItemText = RightListBox.SelectedValue.ToString();
                currentItemIndex = RightListBox.SelectedIndex;

                City city = new City();
                city.CityName = currentItemText;
                CityList.Add(city);
                RightListBox.Items.RemoveAt(RightListBox.Items.IndexOf(RightListBox.SelectedItem)); 

                LeftListBox.ItemsSource = null;
                LeftListBox.ItemsSource = CityList.Select(x => x.CityName);

            }
            else
            {
                System.Windows.MessageBox.Show("Please Select An Item To Remove");
            }
        }
    }
}