Windows application programming(1)_9

Title description:

Using the Timer control, design an electronic clock as shown in the figure below.

After the form is required to start, display the current date and time of the system on the label of the form, and click the "End" button to stop displaying the date and time.

Reference Code:

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_9
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.Text = "利用Timer控件，设计电子时钟";
            this.timer1.Enabled = true;
            this.timer1.Interval = 200;
            this.label1.Text = "";
            this.button1.Text = "结束";
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            label1.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
        }

        private void button1_Click(object sender, EventArgs e)
        {
            label1.Text = "";
            timer1.Enabled = false;
        }
    }
}

Automatically generated Designer file:

namespace WindowsFormsApplication5_9
{
    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.components = new System.ComponentModel.Container();
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.label1 = new System.Windows.Forms.Label();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // timer1
            // 
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(96, 61);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(62, 18);
            this.label1.TabIndex = 0;
            this.label1.Text = "label1";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(262, 160);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(150, 62);
            this.button1.TabIndex = 1;
            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(553, 300);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.label1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Timer timer1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Button button1;
    }
}