📄 modify.cs
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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
namespace 图书馆管理系统
{
/// <summary>
/// Modify 的摘要说明。
/// </summary>
public class Modify : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox10;
private System.Windows.Forms.TextBox textBox9;
private System.Windows.Forms.TextBox textBox7;
private System.Windows.Forms.Label label10;
private System.Windows.Forms.Label label9;
private System.Windows.Forms.Label label7;
private System.Windows.Forms.TextBox textBox5;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.TextBox textBox4;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Label label11;
private System.Windows.Forms.TextBox textBox11;
private System.Windows.Forms.Button button3;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Modify()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.textBox10 = new System.Windows.Forms.TextBox();
this.textBox9 = new System.Windows.Forms.TextBox();
this.textBox7 = new System.Windows.Forms.TextBox();
this.label10 = new System.Windows.Forms.Label();
this.label9 = new System.Windows.Forms.Label();
this.label7 = new System.Windows.Forms.Label();
this.textBox5 = new System.Windows.Forms.TextBox();
this.label5 = new System.Windows.Forms.Label();
this.textBox4 = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.textBox3 = new System.Windows.Forms.TextBox();
this.label3 = new System.Windows.Forms.Label();
this.textBox2 = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.textBox1 = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.label11 = new System.Windows.Forms.Label();
this.textBox11 = new System.Windows.Forms.TextBox();
this.button3 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// textBox10
//
this.textBox10.Location = new System.Drawing.Point(304, 184);
this.textBox10.Name = "textBox10";
this.textBox10.TabIndex = 39;
this.textBox10.Text = "";
//
// textBox9
//
this.textBox9.Location = new System.Drawing.Point(304, 128);
this.textBox9.Name = "textBox9";
this.textBox9.TabIndex = 38;
this.textBox9.Text = "";
//
// textBox7
//
this.textBox7.Location = new System.Drawing.Point(304, 72);
this.textBox7.Name = "textBox7";
this.textBox7.TabIndex = 36;
this.textBox7.Text = "";
//
// label10
//
this.label10.Location = new System.Drawing.Point(224, 184);
this.label10.Name = "label10";
this.label10.Size = new System.Drawing.Size(72, 23);
this.label10.TabIndex = 35;
this.label10.Text = "联系电话：";
//
// label9
//
this.label9.Location = new System.Drawing.Point(216, 128);
this.label9.Name = "label9";
this.label9.Size = new System.Drawing.Size(80, 23);
this.label9.TabIndex = 34;
this.label9.Text = "出版社地址：";
//
// label7
//
this.label7.Location = new System.Drawing.Point(224, 72);
this.label7.Name = "label7";
this.label7.Size = new System.Drawing.Size(64, 23);
this.label7.TabIndex = 32;
this.label7.Text = "作者：";
//
// textBox5
//
this.textBox5.Location = new System.Drawing.Point(304, 24);
this.textBox5.Name = "textBox5";
this.textBox5.TabIndex = 29;
this.textBox5.Text = "";
//
// label5
//
this.label5.Location = new System.Drawing.Point(224, 24);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(64, 23);
this.label5.TabIndex = 28;
this.label5.Text = "出版社：";
//
// textBox4
//
this.textBox4.Location = new System.Drawing.Point(104, 176);
this.textBox4.Name = "textBox4";
this.textBox4.Size = new System.Drawing.Size(96, 21);
this.textBox4.TabIndex = 27;
this.textBox4.Text = "";
//
// label4
//
this.label4.Location = new System.Drawing.Point(32, 184);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(72, 23);
this.label4.TabIndex = 26;
this.label4.Text = "出版日期：";
//
// textBox3
//
this.textBox3.Location = new System.Drawing.Point(104, 120);
this.textBox3.Name = "textBox3";
this.textBox3.TabIndex = 25;
this.textBox3.Text = "";
//
// label3
//
this.label3.Location = new System.Drawing.Point(32, 128);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(56, 23);
this.label3.TabIndex = 24;
this.label3.Text = "价格：";
//
// textBox2
//
this.textBox2.Location = new System.Drawing.Point(104, 72);
this.textBox2.Name = "textBox2";
this.textBox2.TabIndex = 23;
this.textBox2.Text = "";
//
// label2
//
this.label2.Location = new System.Drawing.Point(32, 80);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(56, 23);
this.label2.TabIndex = 22;
this.label2.Text = "书名：";
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(104, 24);
this.textBox1.Name = "textBox1";
this.textBox1.TabIndex = 21;
this.textBox1.Text = "";
//
// label1
//
this.label1.Location = new System.Drawing.Point(32, 32);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(64, 23);
this.label1.TabIndex = 20;
this.label1.Text = "序列号：";
//
// button1
//
this.button1.Location = new System.Drawing.Point(32, 288);
this.button1.Name = "button1";
this.button1.TabIndex = 40;
this.button1.Text = "修改";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(160, 288);
this.button2.Name = "button2";
this.button2.TabIndex = 41;
this.button2.Text = "取消";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// label11
//
this.label11.Location = new System.Drawing.Point(24, 232);
this.label11.Name = "label11";
this.label11.Size = new System.Drawing.Size(72, 23);
this.label11.TabIndex = 42;
this.label11.Text = "借阅状态";
//
// textBox11
//
this.textBox11.Location = new System.Drawing.Point(104, 232);
this.textBox11.Name = "textBox11";
this.textBox11.TabIndex = 43;
this.textBox11.Text = "";
//
// button3
//
this.button3.Location = new System.Drawing.Point(296, 288);
this.button3.Name = "button3";
this.button3.TabIndex = 44;
this.button3.Text = "清除";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// Modify
//
this.AcceptButton = this.button1;
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(432, 334);
this.Controls.Add(this.button3);
this.Controls.Add(this.textBox11);
this.Controls.Add(this.label11);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox10);
this.Controls.Add(this.textBox9);
this.Controls.Add(this.textBox7);
this.Controls.Add(this.label10);
this.Controls.Add(this.label9);
this.Controls.Add(this.label7);
this.Controls.Add(this.textBox5);
this.Controls.Add(this.label5);
this.Controls.Add(this.textBox4);
this.Controls.Add(this.label4);
this.Controls.Add(this.textBox3);
this.Controls.Add(this.label3);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.label2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.label1);
this.Name = "Modify";
this.Text = "Modify";
this.ResumeLayout(false);
}
#endregion
private void button1_Click(object sender, System.EventArgs e)
{
if(textBox1.Text!="")
{
if(Exists(textBox1.Text,textBox2.Text))
{
//SqlDataAdapter myDataAdapter = new SqlDataAdapter();
string strConn="INTEGRATED SECURITY=TRUE;Initial Catalog=Bookmanagement;Data Source=127.0.0.1";
SqlConnection myConnection=new SqlConnection(strConn);
myConnection.Open();
string cmdString="update Bookdetails set 作者='"+textBox7.Text+"',出版社='"+textBox5.Text+"',出版社地址='"+textBox9.Text+"',联系电话='"+textBox10.Text+"' where 书名='"+textBox2.Text+"'";
SqlCommand cmm=new SqlCommand(cmdString,myConnection);
cmm.ExecuteNonQuery();
cmdString="update Books set 书名='"+textBox2.Text+"',出版日期='"+textBox4.Text+"',定价='"+textBox3.Text+"',借阅状态='"+textBox11.Text+"' where 序列号='"+textBox1.Text+"'";
cmm=new SqlCommand(cmdString,myConnection);
cmm.ExecuteNonQuery();
MessageBox.Show("借书成功！");
}
else
{
MessageBox.Show("用户名不存在！");
}
}
else
{
MessageBox.Show("用户名不能为空！");
}
}
private bool Exists(string str1,string str2)
{
bool result;
string strConn="INTEGRATED SECURITY=TRUE;Initial Catalog=Bookmanagement;Data Source=127.0.0.1";
SqlConnection myConnection=new SqlConnection(strConn);
myConnection.Open();
string cmdString="select * from Books where Books.书名='"+str2+"' AND Books.序列号='"+str1+"'";
SqlCommand cmd=new SqlCommand(cmdString,myConnection);
SqlDataReader reader=cmd.ExecuteReader();
if(reader.Read())
{
result=true;
}
else
{
result=false;
}
reader.Close();
myConnection.Close();
return result;
}
private void button2_Click(object sender, System.EventArgs e)
{
this.Close();
}
private void button3_Click(object sender, System.EventArgs e)
{
textBox1.Text="";
textBox2.Text="";
textBox3.Text="";
textBox4.Text="";
textBox5.Text="";
textBox7.Text="";
textBox9.Text="";
textBox10.Text="";
textBox11.Text="";
}
}
}
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