正文
c#链接数据库，查找数据信息
提示：扫一扫查出行【扫一扫了解最新限行尾号】
复制提示
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Data;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Data;
using System.Data.SqlClient;
namespace WpfApplication12
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
public object SqlConnection{get；private set；}
private void button_Click(object sender, RoutedEventArgs e)
{
SqlConnection con=new SqlConnection("database=demo1;server=.;uid=sa;password=123456");
con.Open();
string sql="insert intoTabel1(booknumber,author,publication)values('"+booknumber.Text+"','"+author.Text+"','"+publication_date.Text+"')";
SqlCommand com=new SqldCommand(sql,con);
com.ExecureNonQuery();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
SqlConnection con=new SqlConnection（"database=demo1;server=.;uid=sa;password=123456"）；
con.Open();
string sql="select * from Tabel1 where booknumber='"+booknumber.Text+"'";
SqlDataAdapter adapter=new SqlDataAdapter（sql,con）；
DataSet dataset =new DataSet();
adapter.Fill(dataset);
grid.ItemSource=dataset.Tables[0].DefaultView();
if(dataset.Tables[0].Rows.Count>0)
{
string aa=dataset.Tables[0].Rows[0]["booknumber"].ToString();
MessageBox.Show(aa）；
}
else
{
MessageBox.Show("无此书");
}
}
}
}
