【发布时间】：2013-07-19 09:45:22
【问题描述】：
我有从 sql 数据库中获取数据的列表视图。我想通过在文本框中输入的文本进行搜索，并在单击按钮后显示结果并隐藏不匹配的记录
这是我的方法
请帮忙
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 System.Data.SqlClient;
namespace Inventory_Manager_Pro
{
public partial class Modify : Form
{
public SqlConnection cn = new SqlConnection("Data Source=10.0.0.13;Initial Catalog=INVENTDB;Persist Security Info=True;User ID=sa;Password=farespila010A@;Encrypt=False");
public Modify()
{
InitializeComponent();
}
private void populate()
{
listView1.Items.Clear();
SqlCommand cm = new SqlCommand("SELECT * FROM lapdev", cn);
try
{
SqlDataReader dr = cm.ExecuteReader();
while (dr.Read())
{
ListViewItem it = new ListViewItem(dr["fillingcode"].ToString());
it.SubItems.Add(dr["username"].ToString());
it.SubItems.Add(dr["branch"].ToString());
it.SubItems.Add(dr["department"].ToString());
it.SubItems.Add(dr["agency"].ToString());
it.SubItems.Add(dr["computername"].ToString());
it.SubItems.Add(dr["lapmodel"].ToString());
it.SubItems.Add(dr["lapserial"].ToString());
it.SubItems.Add(dr["assetnumber"].ToString());
it.SubItems.Add(dr["os"].ToString());
it.SubItems.Add(dr["winlicense"].ToString());
it.SubItems.Add(dr["office"].ToString());
it.SubItems.Add(dr["officelicense"].ToString());
it.SubItems.Add(dr["hddsize"].ToString());
it.SubItems.Add(dr["processor"].ToString());
it.SubItems.Add(dr["ram"].ToString());
it.SubItems.Add(dr["macadress"].ToString());
it.SubItems.Add(dr["ipadress"].ToString());
listView1.Items.Add(it);
}
dr.Close();
dr.Dispose();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void Modify_Shown(object sender, EventArgs e)
{
try
{
cn.Open();
populate();
}
catch (SqlException ex)
{
MessageBox.Show(ex.Message, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
Application.ExitThread();
}
}
private void button1_Click(object sender, EventArgs e)
{
listView1.Items.Clear(); // clear list items before adding
listView1.Items.AddRange(Items.Where(i=>string.IsNullOrEmpty(textBox1.Text)||i.Name.StartsWith(textBox1.Text))
.Select(c => new ListViewItem(c.Name)).ToArray());
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void button2_Click(object sender, EventArgs e)
{
}
}
}
【问题讨论】：
-
我可以确切地看到您的问题出在哪里.. 但是您可以吗？您是否尝试过解决这个问题？除了
SELECT * FROM，您还学过任何 SQL 吗？我们可以给你答案..但它们是你应该能够自己调查的答案。对不起，如果这听起来很苛刻。 -
我一直在寻找 2 天不停..如果你可以请帮忙
-
"SELECT * FROM lapdev WHERE YourField='" + textBox1.Text + "'"
-
不错的网站，带有示例 sql 和其他内容，请在之后查看 - w3schools.com/sql/default.asp
-
terrybozzio 非常感谢，但你能告诉我我应该在上面的代码中把代码放在哪里
标签： c# listview filter textbox