第七次作业+梦飞扬

在第六次的基础上：

增加：

1、用代码实现对数据库的增删改查操作，以此来实现用户的注册。

2、新建一个报修表，名字为repair_info，列有用户名、报修类型、报修地点、报修内容，报修日期和时间、用户报修次数等，列名自己起。

3、在报修界面中，当用户点击“报修”按钮时，软件会把用户报修的信息写入数据库中，更新报修次数，同时会清空相应的文本框，软件还要

检查所有文本框是否为空，空的话提示报修失败。

[b]代码实现：[/b]

[b]from1:[/b]

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

namespace 登录
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string ConnStr = "Data Source=.;Initial Catalog=repair;Integrated Security=True";
SqlConnection conn = new SqlConnection();
public static string name;
private void button1_Click(object sender, EventArgs e)
{

if (textBox1.Text != "" && textBox2.Text != "")
{
kailu();

name = textBox1.Text;
string com = "select count(*) from user_info where userName='" + name + "' ";
SqlCommand comm = new SqlCommand(com, conn);
int a = (int)comm.ExecuteScalar();
if (a == 0)
{
label3.Text = "用户名不存在！";
textBox1.Clear();
textBox2.Clear();

}
else
{

string corrStr = "select count(*)  from user_info where userName='" + textBox1.Text + "' and  passWord='" + textBox2.Text + "'";
SqlCommand con = new SqlCommand(corrStr, conn);
int tt = (int)con.ExecuteScalar();
if (tt == 0)
{
label3.Text = "您输入的密码有错误，请重新输入！";
textBox2.Clear();
}
else
{

label3.Text="恭喜你，登录成功了！";
Form2 foa = new Form2();
foa.ShowDialog();
}
}

}
else
{
MessageBox.Show("请输入用户名和密码！");
}

}
private void kailu()
{

try
{
conn = new SqlConnection(ConnStr);
conn.Open();
}
catch (Exception ex)
{

label3.Text="数据库连接失败" + ex.ToString();
}

}

private void button2_Click(object sender, EventArgs e)
{
Form3 form = new Form3();
form.ShowDialog();
}
}
}

from2:

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

namespace 登录
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
string ConnStr = "Data Source=.;Initial Catalog=repair;Integrated Security=True";
SqlConnection conn = new SqlConnection();
private void Form2_Load(object sender, EventArgs e)
{
label1.Text = "欢迎你" + Form1.name;
}

private void button1_Click(object sender, EventArgs e)
{
conn = new SqlConnection(ConnStr);
string updarta = "Update user_info set passWord='" + textBox3.Text.Trim() + "' where userName='" + textBox1.Text.Trim() + "'";
SqlCommand comm = new SqlCommand(updarta, conn);
conn.Open();
int a = comm.ExecuteNonQuery();
if (a > 0)
{
MessageBox.Show("修改成功！");
}
else
{
MessageBox.Show("修改失败！");
}
conn.Close();
}

private void button2_Click(object sender, EventArgs e)
{
conn = new SqlConnection(ConnStr);
string comstr = "insert into repair_info(usernaem,class1,addss,nierong,nowdate,cishu) values('"+textBox2.Text+"','"+textBox4.Text+"','"+textBox5.Text+"','"+textBox6.Text+"','"+textBox7.Text+"','"+textBox8.Text+"')";
SqlCommand comm = new SqlCommand(comstr, conn);
conn.Open();
if (textBox2.Text != "")
{
int a = comm.ExecuteNonQuery();
if (a > 0)
{
MessageBox.Show("报修成功！");
}
else
{
MessageBox.Show("报修失败！");
}
}
string commstr = "select usernaem,class1,addss,nierong,nowdate,cishu from repair_info";
SqlDataAdapter das = new SqlDataAdapter(commstr, conn);
DataSet ds = new DataSet();
DataTable td = new DataTable();
das.Fill(ds);
dataGridView1.DataSource = ds.Tables[0];
conn.Close();
}

private void button3_Click(object sender, EventArgs e)
{
conn = new SqlConnection(ConnStr);
string updarta = "Update repair_info set cishu='" + textBox8.Text.Trim() + "' where usernaem='" + textBox2.Text.Trim() + "'";
SqlCommand comm = new SqlCommand(updarta, conn);
conn.Open();
int a = comm.ExecuteNonQuery();
if (a > 0)
{
MessageBox.Show("再次报修成功！");
}
else
{
MessageBox.Show("再次报修失败！");
}
conn.Close();
}

private void button4_Click(object sender, EventArgs e)
{
conn = new SqlConnection(ConnStr);
string updarta = "delete form repair_info where usernaem='" + textBox2.Text.Trim() + "'";
SqlCommand comm = new SqlCommand(updarta, conn);
conn.Open();
int a = comm.ExecuteNonQuery();
if (a > 0)
{
MessageBox.Show("完成保修成功！");
}
else
{
MessageBox.Show("完成报修失败！");
}
conn.Close();
}

}
}

from3:

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

namespace 登录
{
public partial class Form3 : Form
{
public Form3()
{
InitializeComponent();
}
string ConnStr = "Data Source=.;Initial Catalog=repair;Integrated Security=True";
SqlConnection conn = new SqlConnection();

private void button1_Click(object sender, EventArgs e)
{

if (textBox1.Text != "" && textBox2.Text != "")
{
conn = new SqlConnection(ConnStr);
string comstr = @"insert into user_info(userName,passWord) values('" + textBox1.Text + "','" + textBox2.Text + "')";
SqlCommand comm = new SqlCommand(comstr, conn);
conn.Open();
int a = comm.ExecuteNonQuery();
if (a > 0)
{
MessageBox.Show("注册成功！");
}
else
{
MessageBox.Show("注册失败！");
}

}
else
{
if (textBox1.Text != "")
{
MessageBox.Show("密码不能为空！");
}
else
{
MessageBox.Show("用户名不能为空！");
}
}
conn.Close();
}

private void button2_Click(object sender, EventArgs e)
{
conn = new SqlConnection(ConnStr);
string delstr = "delete from user_info where userName='"+textBox1.Text.Trim()+"'";
SqlCommand comm = new SqlCommand(delstr,conn);
conn.Open();
int a = comm.ExecuteNonQuery();
if (a > 0)
{
MessageBox.Show("注销成功！");
}
else
{
MessageBox.Show("注销失败哦！");
}
conn.Close();
}

}
}

数据库：

：





代码实现：











PSP消耗：

psp	Personal Software Process Stages	Time（h）
planning	.计划	5
.Estimate	.估计这个任务需要多长时间	4
Development	.开发	40
.Analysis	.需求分析	3
.Design Spec	.生成设计文档	2
.Design Review	.设计复审	4
• Coding Standard	.代码规范	2
• Design	.具体设计	15
• Coding	.具体编码	4
• Code Review	.代码复审	3
• Text	.测试	3
Reporting	.报告	4
• Test Report	.测试报告	3
• Size Measurement	.计算工作量	0.5
• Postmortem&Process Improvement Plan	.事后总结并提出改进计划	4

团队总结：

本次团队在上一次的作业中，做了增量，通过团队合作，需要的是交流，只有交流多了，才能进步的多，多动手，在出错中改进，多做，才知道问题所在，在团队里，学会学习，我记得老师说，大学要学会学习的能力，学会查资料；我们团队需要多学习！希望跟上大家的步伐！

工作分配

队长：赵文涛

杨栗：查资料 1分；

娄豪：PSP消耗统计 1分；

李宁：总结 1分；

姚震：测试 1分；

肖雪峰：代码复审 1分；

赵文涛：代码、复查、数据库、思路、界面设计 5分；