frmreturnbook.cs

图书馆管理系统的一个代码 很好的学习借鉴

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Collections;
namespace BookManagementSystem
{
    public partial class frmReturnBook : Form
    {
        public frmReturnBook()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string[] sdata = new string[3];
            sdata[0] = BookNo.Text;
            sdata[1] = NoOfPersonal.Text;
            sdata[2] = IssueOfDate.Text;
            if (sdata[0] == "" || sdata[1] == "" || sdata[2] == "")
            {
                MessageBox.Show("资料不完整!");
                return;
            }
            switch (Program.DataOperator.ReturnBook(sdata))
            {
                case 1:
                    MessageBox.Show("你没借这本书!");
                    break;
                case 2:
                    MessageBox.Show("还书成功!");
                    this.Close();
                    break;
                case 3:
                    MessageBox.Show("失败!");
                    this.Close();
                    break;
            }
            

        }

        private void button3_Click(object sender, EventArgs e)
        {
            try
            {
                lstBook.Items.Clear();
                ArrayList p = Program.DataOperator.GetBookNamesFromPersonalNo(NoOfPersonal.Text);
               // MessageBox.Show(p[0][0].ToString());
                //NameOfPersonal.Text=Program.DataOperator
                if (p == null)
                {
                    MessageBox.Show("无此帐号或此帐号无要还的书");
                    return;
                }
                foreach (string s in p) 
                      lstBook.Items.Add(s);
                  NameOfPersonal.Text = Program.DataOperator.GetPersonalNameFromNo(NoOfPersonal.Text);
               // string[] sdata = Program.DataOperator.ReturnBookNameContenAndCount(BookNo.Text);
                /*     if (sdata == null)
                     {
                         MessageBox.Show("没这本书");
                         return;
                     }
                     BookName.Text = sdata[0];
                     //synopsis.Text = sdata[1];
                     CountOfBook.Text = sdata[2];*/
            }
            catch (Exception ex) { MessageBox.Show(ex.Message); }


        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void lstBook_SelectedIndexChanged(object sender, EventArgs e)
        {
            string curitem = lstBook.SelectedItem.ToString();
            BookName.Text = curitem;
            BookNo.Text = Program.DataOperator.GetBookNoFromName(curitem);
        }


        private void frmReturnBook_Load(object sender, EventArgs e)
        {
            NoOfPersonal.Text = Program.CurrentAccount;
        }

    }
}