frmissuebook.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;

namespace BookManagementSystem
{
    public partial class frmIssueBook : Form
    {
        private Boolean b;
        public frmIssueBook()
        {
            this.b = false;
            InitializeComponent();
        }
        public frmIssueBook(string no, string name, string CountOfBook, string txt)
        {
            this.b = true;
            InitializeComponent();
            this.BookNo.Text = no;
            this.BookName.Text = name;
            this.CountOfBook.Text = CountOfBook;
            this.synopsis.Text = txt;
            
        }

        private void frmIssueBook_Load(object sender, EventArgs e)
        {
            NoOfPersonal.Text = Program.CurrentAccount;
            BookNo.ReadOnly = b;
            BookName.ReadOnly = b;
            button3.Enabled = !b;
            //MessageBox.Show(IssueOfDate.Text);
            this.AcceptButton = button1;

        }

        private void button1_Click(object sender, EventArgs e)
        {
            string[] sdata = new string[4];
            sdata[0] = BookNo.Text;
            sdata[1] = NoOfPersonal.Text;
            sdata[2] = NameOfPersonal.Text;
            sdata[3] = IssueOfDate.Text;
            if (sdata[0] == "" || sdata[1] == "" || sdata[2] == "" || sdata[3]=="")
            {
                MessageBox.Show("资料不完整!");
                return;
            }
        //    MessageBox.Show(sdata[0]+" "+sdata[1]+" "+sdata[2]+" "+sdata[3]);
            switch (Program.DataOperator.IssueBook(sdata))
            {
                case 1:
                    MessageBox.Show("你已借了这本书!");
                    break;
                case 2:
                    MessageBox.Show("借书成功!");
                    this.Close();
                    break;
                case 3:
                    MessageBox.Show("失败!");
                    this.Close();
                    break;
            }
            
        }

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

        private void button3_Click(object sender, EventArgs e)
        {
            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];
        }


    }
}