TuShuTianJiaXinXiForm.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 TuShuTianJiaXinXiForm : Form
    {
        private string typeId;  
        public TuShuTianJiaXinXiForm()
        {
            InitializeComponent();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
        //初始化窗口的时候执行的代码
        private void TuShuTianJiaXinXiForm_Load(object sender, EventArgs e)
        {
            ZhongJianChen.Class_TushuXinxiTianjia xinxi = new ZhongJianChen.Class_TushuXinxiTianjia();
            TypeName_combo.DataSource = xinxi.getComboBox().Tables[0];
            TypeName_combo.DisplayMember = "TypeName";
            TypeName_combo.ValueMember = "TypeName";
        }
        //获取Typeid的值
        private void comboBox2_SelectionChangeCommitted(object sender, EventArgs e)
        {
            ZhongJianChen.Class_TushuXinxiTianjia xinxi = new ZhongJianChen.Class_TushuXinxiTianjia();
            this.typeId = xinxi.getTypeId(TypeName_combo.SelectedValue.ToString());
        }
        //提交时执行
        private void button1_Click(object sender, EventArgs e)
        {
            //防范用户输入为空.
            if (ISBN_Text.Text == "" && ISBN_Text.Text == null)
            {
                MessageBox.Show("填写的图书信息编号不能为空!");
                return;
            }
            if (TypeName_combo.SelectedValue.ToString() == "" && TypeName_combo.SelectedValue.ToString() == null)
            {
                MessageBox.Show("图书类型未选择,请选择!");
                return;
            }
            if (BookName_Text.Text == "" && BookName_Text.Text == null)
            {
                MessageBox.Show("请填写书本名称!");
                return;
            }
            if (Writer_Text.Text == "" && Writer_Text.Text == null)
            {
                MessageBox.Show("请填该书本作者!");
                return;