frmbookclassmanager.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 frmBookClassManager : Form
    {
        public frmBookClassManager()
        {
            InitializeComponent();
        }

        private void bigClassOfBookBindingNavigatorSaveItem_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("确定要保存吗?", "保存确定", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
                return;

            this.Validate();
            this.bigClassOfBookBindingSource.EndEdit();
            this.bigClassOfBookTableAdapter.Update(this.mydata2DataSet.BigClassOfBook);

        }

        private void frmBookClassManager_Load(object sender, EventArgs e)
        {
            // TODO: 这行代码将数据加载到表“mydata2DataSet.SmallClassOfBook”中。您可以根据需要移动或移除它。
            this.smallClassOfBookTableAdapter.Fill(this.mydata2DataSet.SmallClassOfBook);
            // TODO: 这行代码将数据加载到表“mydata2DataSet.BigClassOfBook”中。您可以根据需要移动或移除它。
            this.bigClassOfBookTableAdapter.Fill(this.mydata2DataSet.BigClassOfBook);

        }

        private void bigClassOfBookListBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            SmallClasslistBox.Items.Clear();
            if (大类TextBox.Text == "")
                return;
            ArrayList ALSmallClass = Program.DataOperator.GetSmallClassOfBook(bigClassOfBookListBox.Text);
            foreach (string s in ALSmallClass)
                SmallClasslistBox.Items.Add(s);
        }

        private void AddBtn_Click(object sender, EventArgs e)
        {
            new AddSmallClass(大类TextBox.Text).ShowDialog();
        }

        private void deleteBtn_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("确定要删除吗?", "确定?", MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                string sdata = 大类TextBox.Text + "+" + SmallClasslistBox.Text;
                if (Program.DataOperator.DeleteSmallClass(sdata))
                    MessageBox.Show("删除成功");
                else
                    MessageBox.Show("删除失败");
            }
        }

        private void MotifyBtn_Click(object sender, EventArgs e)
        {
            new frmMotifySmallClass(大类TextBox.Text, SmallClasslistBox.Text).ShowDialog(); ;
        }
    }
}