Add item in listbox using c sharp in WPF

Windows Form Application and Window Presentation Foundation (WPF) are almost identical in some controls and coding style either Visual Basic or C# developer, but their some instances that both of them has their own advantages depends the users need. In this tutorials, I’ll show you a simple way how to add items in listbox when the user click add button and automatically add in a listbox list, I am using C# in WPF, this code also run in Windows Form Application.

Here is the source 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 WPF_My_First_Apps

{

    /// <summary>

    /// Interaction logic for MainWindow.xaml

    /// </summary>

    public partial class MainWindow : Window

    {

        string name, address;//I declared this variable as public

                             //so that it will use when it call

                             //name and address value when the users

                             //click listbox item.

        public MainWindow()

        {

            InitializeComponent();

        }

        private void btnOk_Click(object sender, RoutedEventArgs e)

        {

            name = txtname.Text;

            address = txtaddress.Text;

            listBox1.Items.Add(name);

            listBox1.Items.Add(address);

        }

        private void listBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {

            int select;

            select = listBox1.SelectedIndex;

            switch (select)

            {

                case 0:

                    MessageBox.Show("You click name: " + name);

                    break;

                case 1:

                    MessageBox.Show("You click Address: " + address);

                    break;

            }

        }

    }

}

Sample screenshot:

To count the number items listed in the listbox, here is the code.

     int count;

            count = listBox1.Items.Count;

            MessageBox.Show(count.ToString());

To add item in listbox using checkbox, here is the code:

 private void checkBox1_Checked(object sender, RoutedEventArgs e)

        {

            if (checkBox1.IsChecked == true)

            {

                listBox1.Items.Add("Banana");

            }

        }

        private void checkBox2_Checked(object sender, RoutedEventArgs e)

        {

            if (checkBox1.IsChecked == true)

            {

                listBox1.Items.Add("Orange");

            }

        }

        private void checkBox3_Checked(object sender, RoutedEventArgs e)

        {

            if (checkBox1.IsChecked == true)

            {

                listBox1.Items.Add("Grapes");

            }

        }

To clear items in listbox, here is the code:

     listBox1.Items.Clear();

            checkBox1.IsChecked = false;

            checkBox2.IsChecked = false;

            checkBox3.IsChecked = false;