form1.cs

Visual C#2005程序设计教程

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

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

        private void Form1_Load(object sender, EventArgs e)
        {
            this.Text = "WebService调用示例";
            label1.Text = "操作数 1";
            label2.Text = "运算符";
            label3.Text = "操作数 2";
            button1.Text = "提 交";
            button2.Text = "退 出";
            comboBox1.Text = "＋";
            comboBox1.Items.Add("＋");
            comboBox1.Items.Add("－");
            comboBox1.Items.Add("×");
            comboBox1.Items.Add("÷");
            comboBox1.SelectedIndex = 0;

        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (textBox1.Text != "" && textBox2.Text != "")
            {
                localhost.Service calculate = new localhost.Service();

                float aNum = float.Parse(textBox1.Text);
                float bNum = float.Parse(textBox2.Text);
                float result;
                switch (comboBox1.SelectedIndex)
                {
                    case 0:
                        result = calculate.Add(aNum, bNum);
                        MessageBox.Show("相加的结果为：" + result, "计算结果");
                        break;
                    case 1:
                        result = calculate.Subtract(aNum, bNum);
                        MessageBox.Show("相减的结果为：" + result, "计算结果");
                        break;
                    case 2:
                        result = calculate.Multiply(aNum, bNum);
                        MessageBox.Show("相乘的结果为：" + result, "计算结果");
                        break;
                    case 3:
                        if (bNum != 0)
                        {

                            result = calculate.Divide(aNum, bNum);
                            MessageBox.Show("相除的结果为：" + result, "计算结果");
                            
                        }
                        else
                        {
                            MessageBox.Show("分母不能为零！", "提示");
                        }
                        break;
                }
            }
            else
            {
                MessageBox.Show("操作数不能为空！", "提示");
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}