40 lines
865 B
C#
40 lines
865 B
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace WindowsFormsApp1
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{
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public partial class Form1 : Form
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{
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public Form1()
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{
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InitializeComponent();
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}
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private void button1_Click(object sender, EventArgs e)
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{
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listBox1.Items.Add(textBox1.Text);
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}
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private void button2_Click(object sender, EventArgs e)
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{
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int index = listBox1.SelectedIndex;
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if (index != -1)
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{
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listBox1.Items.RemoveAt(index);
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}
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}
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private void button3_Click(object sender, EventArgs e)
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{
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listBox1.Items.Clear();
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}
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}
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}
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