第八次實驗報告

1、寧波大學(xué)實驗報告實驗課程名稱：數(shù)據(jù)庫應(yīng)用與開發(fā)院： 學(xué)專業(yè)：信息管理與信息系統(tǒng)指 導(dǎo) 教師：萌報告人 王曉瑩學(xué)號信管班級：20162017學(xué)期：商科實驗教學(xué)中心制實驗成績實驗項目名稱模糊一、實驗?zāi)康呐c要求：二、實驗設(shè)備及軟件：VS2010三、實驗方法（原理、流程圖）四、實驗過程、步驟及內(nèi)容代碼：using System;using System.Collections.Generic; using System.ComponentM; using System.Data;using System.Drawing; using System.Linq; using Sy

2、stem.Text;using System.Windows.Forms; using System.Data.OleDb;namespace 實害?驗é8public partial class Form1 : Formpublic Form1()InitializeComponent();private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)textBox1.Text = dataGridView10, e.RowIndex.Value.ToString(); textBox

3、2.Text = dataGridView11, e.RowIndex.Value.ToString();private void button2_Click(object sender, EventArgs e)OleDbConnection my= new OleDbConnection(); OleDbCommand CMD = new OleDbCommand();/OleDbDataReader Reader; DataSet dt = new DataSet();OleDbDataAdapter adpter = new OleDbDataAdapter();my.Connecti

4、onString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:c#程ì序ò設(shè)?計?2017-4-5 第 ?五?次?上?機ú實害?驗émy.mdb"CMD.Connection = my; my.Open();CMD.CommandText = "select * from 學(xué)§生?獁 here 學(xué)§號?='" + textBox1.Text + "'"object t = CMD.ExecuteScala

5、r(); if (t != null)MessageBox.Show("錯洙?誤ó已?存?在ú"); return;CMD.CommandText = "insert into 學(xué)§生?學(xué)§號?,values('" + textBox1.Text + "','" + textBox2.Text + "')"CMD.ExecuteNonQuery();CMD.CommandText = "select 學(xué)§號?,from 學(xué)&

6、#167;生?;/dt.Clear(); adpter.SelectCommand = CMD; adpter.Fill(dt, "Database3");dataGridView1.DataSource = dt.Tables"Database3" my.Close();MessageBox.Show("添 ?加ó成é功|");/添 ? ¨?加óó?信?息éprivate void button3_Click(object sender, EventArgs e)OleDb

7、Connection my= new OleDbConnection(); OleDbCommand CMD = new OleDbCommand();/OleDbDataReader Reader; DataSet dt = new DataSet();OleDbDataAdapter adpter = new OleDbDataAdapter();my.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:c#程ì序ò設(shè)?計?2017-4-5 第 ?五?次?上?機ú實害?

8、驗émy.mdb"CMD.Connection = my; my.Open();CMD.CommandText = "select * from 學(xué)§生?獁 here 學(xué)§號?='" + textBox1.Text + "'"object t = CMD.ExecuteScalar(); if (t = null)MessageBox.Show("不?存?在ú該?學(xué)§號?，?刪?除 y 失骸?敗悒?);CMD.CommandText = "delete fro

9、m 學(xué)§生?獁 here 學(xué)§號?='" + textBox1.Text+ "'"CMD.ExecuteNonQuery(); dt.Clear();CMD.CommandText = "select * from 學(xué)§生?;/CMD.CommandText = "select 學(xué)§號?,from 學(xué)§生?獁 here 學(xué)§號? like '%" + textBox1.Text + "%' order by 學(xué)§號?&quo

10、t;adpter.SelectCommand = CMD; adpter.Fill(dt, "Database3");dataGridView1.DataSource = dt.Tables"Database3" my.Close();MessageBox.Show("刪?除 y 成é功|");private void button4_Click(object sender, EventArgs e)OleDbConnection my= new OleDbConnection(); OleDbCommand CMD = n

11、ew OleDbCommand();/OleDbDataReader Reader; DataSet dt = new DataSet();OleDbDataAdapter adpter = new OleDbDataAdapter();my.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:c#程ì序ò設(shè)?計?2017-4-5 第 ?五?次?上?機ú實害?驗émy.mdb"CMD.Connection = my; my.Open();CMD.Comm

12、andText = "update 學(xué)§生?猻 et 姓?名?='" + textBox2.Text + "'where 學(xué)§號?= '"+textBox1.Text+ "'"CMD.ExecuteNonQuery(); dt.Clear();CMD.CommandText = "select * from 學(xué)§生?;adpter.SelectCommand = CMD; adpter.Fill(dt, "students");dataGrid

13、View1.DataSource = dt.Tables"students" my.Close();private void button1_Click(object sender, EventArgs e)OleDbConnection my= new OleDbConnection(); OleDbCommand CMD = new OleDbCommand();/OleDbDataReader Reader; DataSet dt = new DataSet();OleDbDataAdapter adpter = new OleDbDataAdapter();my.C

14、onnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:c#程ì序ò設(shè)?計?2017-4-5 第 ?五?次?上?機ú實害?驗émy.mdb"CMD.Connection = my; my.Open();dt.Clear();CMD.CommandText = "select * from 學(xué)§生?; adpter.SelectCommand = CMD;adpter.Fill(dt, "Database3"); data

15、GridView1.DataSource = dt.Tables"Database3" my.Close();MessageBox.Show("刷新?成é功|");private void button5_Click(object sender, EventArgs e)OleDbConnection my= new OleDbConnection(); OleDbCommand CMD = new OleDbCommand();/OleDbDataReader Reader; DataSet dt = new DataSet();OleDbD

16、ataAdapter adpter = new OleDbDataAdapter();my.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:c#程ì序ò設(shè)?計?2017-4-5 第 ?五?次?上?機ú實害?驗émy.mdb"CMD.Connection = my; my.Open();dt.Clear();if (comboBox1.Text = "學(xué)§號?")CMD.CommandText = "select

17、 學(xué)§號?,from 學(xué)§生?獁 here 學(xué)§ 號?like '%" + textBox3.Text + "%' order by 學(xué)§號?"adpter.SelectCommand = CMD; adpter.Fill(dt, "Database3");dataGridView1.DataSource = dt.Tables"Database3" my.Close();MessageBox.Show("學(xué)§號?搜?索÷成é功|！?");elseCMD.CommandText = "select 學(xué)§號?,rom 學(xué)§生?獁 here like '%" + textBox3.Text + "%' order by 學(xué)§號?"adpter.Sele