scholastic/Form3_1.cs

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

namespace scholastic
{
    public partial class Form3_1 : Form
    {
        string sno;  //存储课程号
        string sname;   //存储课程名
        string steacher;   //存储授课老师
        string sspec;    //存储专业
        public Form3_1()
        {
            InitializeComponent();
        }

        private void Form3_1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (textBox1.Text == "" || textBox2.Text == "" || textBox3.Text == ""||textBox4.Text=="")
            {
                MessageBox.Show("输入的信息不完整,重新输入！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
            }
            else
            {
                string constr = "server=.\\sql2005;database=mydata;uid=sa;pwd=sa";
                SqlConnection mycon = new SqlConnection(constr);
                mycon.Open();
                string myinsert = "insert into course(课程号,课程名,任课教师,专业) values(" + Convert.ToInt32(textBox1.Text) + ",'" + textBox2.Text + "','" + textBox3.Text + "','"+textBox4.Text+"')";
                SqlCommand mycom = new SqlCommand(myinsert, mycon);
                mycom.ExecuteNonQuery();
                mycon.Close();
                mycon.Dispose();
                MessageBox.Show("已成功向数据库表中插入一条记录！","信息提示",MessageBoxButtons.OK, MessageBoxIcon.Information);
                sno = textBox1.Text;
                sname = textBox2.Text;
                steacher = textBox3.Text;
                sspec = textBox4.Text;
                textBox1.Text = "";
                textBox2.Text = "";
                textBox3.Text = "";
                textBox4.Text = "";
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Form3_1_ myf = new Form3_1_();
            myf.toolStripStatusLabel1.Text = "成功插入一条记录-->课程号:" + sno + ",课程名:" + sname + ",任课教师:" + steacher + ",专业：" + sspec;