Programación de aplicaciones de Windows (1) _8

Requisitos de la asignatura:

Diseñe el formulario como se muestra

Hay un cuadro de lista, una etiqueta y un botón en el formulario. Utilice la clase Random para generar 10 números aleatorios entre [10,99] y muestre estos 10 números aleatorios en el cuadro de lista, cada número ocupa un elemento. Una vez que el usuario selecciona un elemento, el contenido seleccionado se muestra en la etiqueta de la derecha.

Código de referencia:

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

namespace WindowsFormsApplication5_8
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.Text = "列表框实验";
            label1.Text = "";
            this.listBox1.Text = "";
            this.listBox1.ScrollAlwaysVisible = true;
            Random r = new Random();
            for (int i = 0; i < 10; i++)
            {
                listBox1.Items.Add(r.Next(10,100));
            }
            this.button1.Text = "结束";
        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            label1.Text = listBox1.SelectedItem.ToString();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}

Archivo de diseñador generado automáticamente:

namespace WindowsFormsApplication5_8
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.label1 = new System.Windows.Forms.Label();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 18;
            this.listBox1.Location = new System.Drawing.Point(47, 107);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(262, 130);
            this.listBox1.TabIndex = 0;
            this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(409, 68);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(62, 18);
            this.label1.TabIndex = 1;
            this.label1.Text = "label1";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(374, 174);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(130, 63);
            this.button1.TabIndex = 2;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(589, 343);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.listBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.ListBox listBox1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Button button1;
    }
}