winform —— listview创建表及简单的增删改查

 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;
 using WindowsFormsApplication7.App_Code;

 namespace WindowsFormsApplication7
 {
     public partial class Form4 : Form
     {
         public Form4()
         {
             InitializeComponent();
         }
         //新增
         private void button1_Click(object sender, EventArgs e)
         {
             Insert f = new Insert();//打开Insert新增窗体
             f.Owner = this;
             f.Show();
         }
         //窗体一运行就执行
         private void Form4_Load(object sender, EventArgs e)
         {
             List<UserData> list = new UserDA().Select();//查询数据库对应数据
             Binddata(list);//绑定数据
         }

         private void Binddata(List<UserData> list)
         {
             //第一步：构建listview"'
             listView1.Columns.Clear();
             listView1.Columns.Add("编号");
             listView1.Columns.Add("用户名");
             listView1.Columns.Add("密码");

             listView1.Items.Clear();

             //读取数据，通过数据构建listview中的行

             foreach (UserData data in list)
             {
                 ListViewItem lt = new ListViewItem();
                 lt.Text = data.Code.ToString();
                 lt.SubItems.Add(data.Uname);
                 lt.SubItems.Add(data.UPass);

                 listView1.Items.Add(lt);
             }
         }
         //条件查询
         private void button4_Click(object sender, EventArgs e)
         {
             List<UserData> listtiaojian =  new UserDA().Select(textBox1.Text);
             Binddata(listtiaojian);
         }
         //删除数据
         private void button3_Click(object sender, EventArgs e)
         {
             if (listView1.SelectedItems.Count > )
             {
                string code = listView1.SelectedItems[].Text;
                new UserDA().Delete(code);
                 //重新绑定数据
                List<UserData> list = new UserDA().Select();
                Binddata(list);
             }
             else
             {
                 MessageBox.Show("请选择，再删除");
             }
         }
         //修改数据
         private void button2_Click(object sender, EventArgs e)
         {
             if (listView1.SelectedItems.Count > )
             {
                 UserData data = new UserData();
                 data.Code = int.Parse(listView1.SelectedItems[].SubItems[].Text);
                 data.Uname = listView1.SelectedItems[].SubItems[].Text;
                 data.UPass = listView1.SelectedItems[].SubItems[].Text;
                 Update f = new Update(data);
                 f.Show();
             }
             else
             {
                 MessageBox.Show("请选择，再修改");
             }

         }
     }
 }