YongHuXinXiXiuGaiYuShanChuForm.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace MF借书系统
{
    public partial class YongHuXinXiXiuGaiYuShanChuForm : Form
    {
        bool boolean;
        public YongHuXinXiXiuGaiYuShanChuForm()
        {
            InitializeComponent();
            Tianjia.Focus();
        }

        private void YongHuXinXiXiuGaiYuShanChuForm_Load(object sender, EventArgs e)
        {
            comboBox1.SelectedIndex = 0;
            ZhongJianChen.Class_DuzheXinxiShanchu shanchu = new ZhongJianChen.Class_DuzheXinxiShanchu();
            dataGridView1.DataSource = shanchu.getTable();
        }

        private void Tianjia_TextChanged(object sender, EventArgs e)
        {
            ZhongJianChen.Class_DuzheXinxiShanchu shanchu = new ZhongJianChen.Class_DuzheXinxiShanchu();
            //如果是合法的时候
            if (shanchu.bool_Duzhe(Tianjia.Text,comboBox1.SelectedIndex))
            {
                boolean = true;
                dataGridView1.DataSource = shanchu.getDantiao();
                return;
            }
            boolean = false;
            if (Tianjia.Text == "")
            {
                dataGridView1.DataSource = shanchu.getTable();
                return;
            }
            dataGridView1.DataSource = shanchu.getKongbai();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (Tianjia.Text == "")
            {
                Tianjia.Focus();
                MessageBox.Show("填写的条件不能为空!");
                return;
            }
            if (boolean)
            {
                ZhongJianChen.Class_DuzheXinxiShanchu shanchu = new ZhongJianChen.Class_DuzheXinxiShanchu();
                if (shanchu.delete(Tianjia.Text, comboBox1.SelectedIndex))
                {
                    dataGridView1.DataSource = shanchu.getTable();