Add items to listbox and remove items from listbox in C#

This topic explains about how to add items to listbox and remove items from listbox in C# programming.
Tools needed: ListBox (ListBox1), Button1(btnAdd), Button2(btnClear)

ListBox Class – Add items to listbox and remove items from listbox in C#

ListBox contains a list of selected items.

Namespace: System.Windows.Controls

Assembly: PresentationFramework (in PresentationFramework.dll)

Syntax for ListBox

[LocalizabilityAttribute(LocalizationCategory.ListBox)]
[StyleTypedPropertyAttribute(Property = "ItemContainerStyle", StyleTargetType = typeof(ListBoxItem))]
public class ListBox : Selector

[LocalizabilityAttribute(LocalizationCategory.ListBox)]

[StyleTypedPropertyAttribute(Property = "ItemContainerStyle", StyleTargetType = typeof(ListBoxItem))]

public class ListBox : Selector

ListBox.Items property – Add items to listbox and remove items from listbox in C#

Get the items of the ListBox
Syntax

 // Declaration
    public ListBox.ObjectCollection Items {
    }

// Declaration

public ListBox.ObjectCollection Items {

}

This property enables you to obtain a reference to the list of items that are currently stored in the ListBox.
With this reference, you can add items, remove items, and obtain a count of the items in the collection.
You can also manipulate the items of a ListBox by using the DataSource property

To add items to ListBox – Add items to listbox and remove items from listbox in C#

listBox1.Items.Add("ListData1");

1	listBox1.Items.Add("ListData1");

To clear items from ListBox – Add items to listbox and remove items from listbox in C#

listBox1.Items.Clear();

1	listBox1.Items.Clear();

ListBox.SelectedIndex Property – Add items to listbox and remove items from listbox in C#

It helps to gets or sets the zero-based index of the currently selected item from the ListBox.

NameSpace: System.Windows.Forms

Assembly: System.Windows.Forms (in System.Windows.Forms.dll)

Syntax:

   // Declaration
    [BindableAttribute(true)]
    [BrowsableAttribute(false)]
    public override int SelectedIndex {
    }

// Declaration

[BindableAttribute(true)]

[BrowsableAttribute(false)]

public override int SelectedIndex {

}

Add items to listbox and remove items from listbox in C# – Complete Code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            // To add items to the listbox
            listBox1.Items.Add("ListData1");
            listBox1.Items.Add("ListData2");
            listBox1.Items.Add("ListData3");
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            // To clear listbox items'
            listBox1.Items.Clear();
        }
    }
}

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication1

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

}

private void btnAdd_Click(object sender, EventArgs e)

{

// To add items to the listbox

listBox1.Items.Add("ListData1");

listBox1.Items.Add("ListData2");

listBox1.Items.Add("ListData3");

}

private void btnClear_Click(object sender, EventArgs e)

{

// To clear listbox items'

listBox1.Items.Clear();

}

Add items to listbox and remove items from listbox in C#

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Add items to listbox and remove items from listbox in C#

ListBox Class – Add items to listbox and remove items from listbox in C#

ListBox.Items property – Add items to listbox and remove items from listbox in C#

To add items to ListBox – Add items to listbox and remove items from listbox in C#

To clear items from ListBox – Add items to listbox and remove items from listbox in C#

ListBox.SelectedIndex Property – Add items to listbox and remove items from listbox in C#

Add items to listbox and remove items from listbox in C# – Complete Code

Add items to listbox and remove items from listbox in C#

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