📄 bookreturn.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>
/// BookReturn 的摘要说明。
/// </summary>
public class BookReturn : System.Windows.Forms.Form
{
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.Button btnSearch;
private System.Windows.Forms.TextBox txt1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox txt2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox txt3;
private System.Data.SqlClient.SqlDataAdapter da1;
private System.Data.SqlClient.SqlConnection sqlConnection1;
private 图书馆管理系统.DataSet2 dataSet21;
private System.Windows.Forms.Button btnReturn;
private System.Data.SqlClient.SqlCommand sqlSelectCommand1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public BookReturn()
{
//
// 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()
{
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(BookReturn));
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.btnSearch = new System.Windows.Forms.Button();
this.txt1 = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.label1 = new System.Windows.Forms.Label();
this.txt2 = new System.Windows.Forms.TextBox();
this.label3 = new System.Windows.Forms.Label();
this.txt3 = new System.Windows.Forms.TextBox();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.dataSet21 = new 图书馆管理系统.DataSet2();
this.btnReturn = new System.Windows.Forms.Button();
this.da1 = new System.Data.SqlClient.SqlDataAdapter();
this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
this.groupBox1.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.dataSet21)).BeginInit();
this.SuspendLayout();
//
// groupBox1
//
this.groupBox1.Controls.Add(this.btnSearch);
this.groupBox1.Controls.Add(this.txt1);
this.groupBox1.Controls.Add(this.label2);
this.groupBox1.Controls.Add(this.label1);
this.groupBox1.Controls.Add(this.txt2);
this.groupBox1.Controls.Add(this.label3);
this.groupBox1.Controls.Add(this.txt3);
this.groupBox1.Location = new System.Drawing.Point(6, 4);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(642, 60);
this.groupBox1.TabIndex = 0;
this.groupBox1.TabStop = false;
//
// btnSearch
//
this.btnSearch.Image = ((System.Drawing.Image)(resources.GetObject("btnSearch.Image")));
this.btnSearch.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.btnSearch.Location = new System.Drawing.Point(16, 26);
this.btnSearch.Name = "btnSearch";
this.btnSearch.Size = new System.Drawing.Size(72, 23);
this.btnSearch.TabIndex = 3;
this.btnSearch.Text = " 搜索";
this.btnSearch.Click += new System.EventHandler(this.btnSearch_Click);
//
// txt1
//
this.txt1.Location = new System.Drawing.Point(155, 25);
this.txt1.Name = "txt1";
this.txt1.TabIndex = 8;
this.txt1.Text = "";
//
// label2
//
this.label2.Location = new System.Drawing.Point(104, 29);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(56, 16);
this.label2.TabIndex = 6;
this.label2.Text = "读者编号";
//
// label1
//
this.label1.Location = new System.Drawing.Point(288, 29);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(56, 16);
this.label1.TabIndex = 4;
this.label1.Text = "图书编号";
//
// txt2
//
this.txt2.Location = new System.Drawing.Point(347, 25);
this.txt2.Name = "txt2";
this.txt2.TabIndex = 9;
this.txt2.Text = "";
//
// label3
//
this.label3.Location = new System.Drawing.Point(472, 29);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(56, 16);
this.label3.TabIndex = 5;
this.label3.Text = "读者姓名";
//
// txt3
//
this.txt3.Location = new System.Drawing.Point(528, 25);
this.txt3.Name = "txt3";
this.txt3.TabIndex = 7;
this.txt3.Text = "";
//
// dataGrid1
//
this.dataGrid1.CaptionVisible = false;
this.dataGrid1.DataMember = "图书借阅";
this.dataGrid1.DataSource = this.dataSet21;
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(8, 64);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.ReadOnly = true;
this.dataGrid1.Size = new System.Drawing.Size(640, 360);
this.dataGrid1.TabIndex = 1;
//
// dataSet21
//
this.dataSet21.DataSetName = "DataSet2";
this.dataSet21.Locale = new System.Globalization.CultureInfo("zh-CN");
//
// btnReturn
//
this.btnReturn.Location = new System.Drawing.Point(144, 448);
this.btnReturn.Name = "btnReturn";
this.btnReturn.Size = new System.Drawing.Size(144, 40);
this.btnReturn.TabIndex = 2;
this.btnReturn.Text = "归还选中图书";
this.btnReturn.Click += new System.EventHandler(this.btnReturn_Click);
//
// da1
//
this.da1.SelectCommand = this.sqlSelectCommand1;
this.da1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {
new System.Data.Common.DataTableMapping("Table", "图书借阅", new System.Data.Common.DataColumnMapping[] {
new System.Data.Common.DataColumnMapping("借阅编号", "借阅编号"),
new System.Data.Common.DataColumnMapping("姓名", "姓名"),
new System.Data.Common.DataColumnMapping("读者编号", "读者编号"),
new System.Data.Common.DataColumnMapping("图书编号", "图书编号"),
new System.Data.Common.DataColumnMapping("书名", "书名"),
new System.Data.Common.DataColumnMapping("借阅时间", "借阅时间"),
new System.Data.Common.DataColumnMapping("应还时间", "应还时间"),
new System.Data.Common.DataColumnMapping("续借次数", "续借次数"),
new System.Data.Common.DataColumnMapping("操作员", "操作员"),
new System.Data.Common.DataColumnMapping("状态", "状态")})});
//
// sqlSelectCommand1
//
this.sqlSelectCommand1.CommandText = @"SELECT a.借阅编号, b.姓名, a.读者编号, a.图书编号, c.书名, a.借阅时间, a.应还时间, a.续借次数, a.操作员, a.状态 FROM 图书借阅 a INNER JOIN 读者信息 b ON a.读者编号 = b.编号 INNER JOIN 图书信息 c ON a.图书编号 = c.编号 WHERE (a.读者编号 LIKE @Param14) AND (a.图书编号 LIKE @Param15) AND (b.姓名 LIKE @Param16) AND (a.状态 = '未还')";
this.sqlSelectCommand1.Connection = this.sqlConnection1;
this.sqlSelectCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Param14", System.Data.SqlDbType.VarChar, 40, "读者编号"));
this.sqlSelectCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Param15", System.Data.SqlDbType.VarChar, 50, "图书编号"));
this.sqlSelectCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Param16", System.Data.SqlDbType.VarChar, 20, "姓名"));
//
// sqlConnection1
//
this.sqlConnection1.ConnectionString = "workstation id=localhost;Integrated Security=SSPI;Database=libbook;";
//
// BookReturn
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(656, 510);
this.Controls.Add(this.btnReturn);
this.Controls.Add(this.dataGrid1);
this.Controls.Add(this.groupBox1);
this.Name = "BookReturn";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "【图书归还】";
this.Load += new System.EventHandler(this.BookReturn_Load);
this.groupBox1.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.dataSet21)).EndInit();
this.ResumeLayout(false);
}
#endregion
//------------初始化窗体时，填充数据-------------
private void BookReturn_Load(object sender, System.EventArgs e)
{
da1.SelectCommand.Parameters[0].Value="%%";
da1.SelectCommand.Parameters[1].Value="%%";
da1.SelectCommand.Parameters[2].Value="%%";
da1.Fill(dataSet21);
}
//-----------搜索借书记录-----------
private void btnSearch_Click(object sender, System.EventArgs e)
{
da1.SelectCommand.Parameters[0].Value="%%";
da1.SelectCommand.Parameters[1].Value="%%";
da1.SelectCommand.Parameters[2].Value="%%";
if(txt1.Text!="")
{
da1.SelectCommand.Parameters[0].Value="%"+txt1.Text+"%";
}
if(txt2.Text!="")
{
da1.SelectCommand.Parameters[1].Value="%"+txt2.Text+"%";
}
if(txt3.Text!="")
{
da1.SelectCommand.Parameters[2].Value="%"+txt3.Text+"%";
}
dataSet21.图书借阅.Clear();
da1.Fill(dataSet21);
}
//--------读者还书----------
private void btnReturn_Click(object sender, System.EventArgs e)
{
int curRow=dataGrid1.CurrentCell.RowNumber;
string borrowID=dataGrid1[curRow,0].ToString().Trim();//借阅编号
DateTime returnTime=Convert.ToDateTime(dataGrid1[curRow,6]);//应还时间
decimal penalty=0;
if(returnTime<System.DateTime.Now)
{
penalty=calPenalty(returnTime);
}
if(penalty!=0)//提示需要支付罚金的读者
{
string msg="该图书应于"+returnTime+"归还,必须支付过期罚金"+penalty.ToString()+"元";
MessageBox.Show(msg,"图书过期",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
string strConn = "workstation id=localhost;Integrated Security=SSPI;database=libbook";
SqlConnection cn=new SqlConnection(strConn);
cn.Open();
SqlCommand cmd=cn.CreateCommand();
cmd.CommandText="exec sf_图书归还 "+borrowID+","+penalty.ToString();
cmd.ExecuteNonQuery();
dataSet21.图书借阅.Clear();
da1.Fill(dataSet21);
}
//-----------计算过期书罚金------------
private decimal calPenalty(DateTime rTime)
{
//计算过期天数
int overDays=365*(System.DateTime.Now.Year-rTime.Year)+System.DateTime.Now.DayOfYear-rTime.DayOfYear;
//根据过期天数计算罚金，本实例中定为每天0.2元
decimal fee=(decimal) 0.2*overDays;
return(fee);
}
}
}
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