form1.cs

c#精彩编程百例（源代码）

namespace WinAPP_FCConvert
{
    using System;
    using System.Drawing;
    using System.Collections;
    using System.ComponentModel;
    using System.WinForms;
    using System.Data;

    /// <summary>
    ///    Summary description for Form1.
    /// </summary>
    public class Form1 : System.WinForms.Form
    {
        /// <summary>
        ///    Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components;
		private System.WinForms.Button button2;
		private System.WinForms.Button button1;
		private System.WinForms.TextBox textBox2;
		private System.WinForms.TextBox textBox1;

        public Form1()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        ///    Clean up any resources being used.
        /// </summary>
        public override void Dispose()
        {
            base.Dispose();
            components.Dispose();
        }

        /// <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.button1 = new System.WinForms.Button ();
			this.button2 = new System.WinForms.Button ();
			this.textBox1 = new System.WinForms.TextBox ();
			this.textBox2 = new System.WinForms.TextBox ();
			//@this.TrayHeight = 0;
			//@this.TrayLargeIcon = false;
			//@this.TrayAutoArrange = true;
			button1.Location = new System.Drawing.Point (40, 80);
			button1.Size = new System.Drawing.Size (72, 24);
			button1.TabIndex = 2;
			button1.Text = "C to F";
			button1.Click += new System.EventHandler (this.button1_Click);
			button2.Visible = true;
			button2.Location = new System.Drawing.Point (216, 80);
			button2.Size = new System.Drawing.Size (72, 24);
			button2.TabIndex = 4;
			button2.Text = "F to C";
			button2.Click += new System.EventHandler (this.button2_Click);
			textBox1.Location = new System.Drawing.Point (40, 16);
			textBox1.TabIndex = 0;
			textBox1.Size = new System.Drawing.Size (72, 21);
			textBox2.Location = new System.Drawing.Point (216, 16);
			textBox2.TabIndex = 1;
			textBox2.Size = new System.Drawing.Size (72, 21);
			textBox2.Visible = true;
			this.Text = "C->F && F->C";
			this.AutoScaleBaseSize = new System.Drawing.Size (6, 14);
			this.ClientSize = new System.Drawing.Size (352, 141);
			this.Controls.Add (this.button2);
			this.Controls.Add (this.button1);
			this.Controls.Add (this.textBox2);
			this.Controls.Add (this.textBox1);
		}

		protected void button2_Click (object sender, System.EventArgs e)
		{
         double dc=0;
         double df=0;
         df=textBox2.Text.ToDouble();
         dc=(df-32)/1.8;
         textBox1.Text=dc.ToString();
		}

		protected void button1_Click (object sender, System.EventArgs e)
		{
          double dc=0;
		  double df=0;
		try 
        {
          dc=textBox1.Text.ToDouble();
         }
        catch(Exception)
        {
          textBox1.Clear();
          textBox2.Clear();
          return;
         }
		  df=dc*1.8+32;
		  textBox2.Text=df.ToString();
		}

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        public static void Main(string[] args) 
        {
            Application.Run(new Form1());
        }
    }
}