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首先,这是我第一次尝试C#。 我的问题是,无论我使用数据表,列表或mysqldatareader;该查询只返回一个结果并且只返回该表的最后一个结果。C#.NET MySql只返回最后的结果
我的表值(西名字在前): 指数城市 1巴黎 2伦敦
我的C#最后一个码企图是:
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 MySql.Data;
using MySql.Data.MySqlClient;
namespace MySQL_Sample
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
//MySql connections
MySqlConnection connection;
string host;
string db;
string uid;
string pass;
host = "localhost";
db = "sample";
uid = "root";
pass = "";
string ConnectionString = "SERVER=" + host + ";" + "DATABASE=" + db + ";" + "UID=" + uid + ";" + "PASSWORD=" + pass + ";";
connection = new MySqlConnection(ConnectionString);
connection.Open();
//MySql Commands
string sql = "SELECT * FROM table1";
MySqlCommand cmd = new MySqlCommand(sql, connection);
MySqlDataReader rdr = cmd.ExecuteReader();
//MySql Call back
while(rdr.Read())
{
DataTxtBox.Text = rdr[0].ToString() + " | " + rdr[1].ToString();
}
}
}
}
这是完美的;还要注意, DataTxtBox.Text + = rdr [0] .ToString()+“|”+ rdr [1] .ToString(); 已更改为: DataTxtBox.Text + = rdr [0] .ToString()+“|”+ rdr [1] .ToString()+“\ r \ n”; – 2013-03-03 18:57:52