总是编译不过去，连接被关闭

[tulu78330872]

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.OracleClient;
using System.Configuration;

namespace 登录
{
public partial class Form1 : Form
{

public Form1()
{
InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)
{
OracleConnection Neu = new OracleConnection("Data Source=orcl;User ID=neu;Password=oracle;Unicode=True");

Neu.Open();

OracleCommand cmd = new OracleCommand();

cmd.CommandText = string.Format("Select uname,password from user_log where uname=" + textBox1.Text);

OracleDataReader sdr = cmd.ExecuteReader();
while (sdr.Read())
{


if (textBox1.Text.Equals(sdr[1]) && textBox2.Text.Equals(sdr[2]))
{
Form2 f = new Form2();
label3.Text = "登录成功";
f.ShowDialog();
}
else
{
label3.Text = "登录失败";
}
}
}


private void label3_Click(object sender, EventArgs e)
{

}

private void Form1_Load(object sender, EventArgs e)
{
textBox1.PasswordChar = '*';
textBox2.PasswordChar = '*';
}


}
}

[xuStanly]

cmd没有指定connection

[lds840827]

这不叫“编译不过去”吧

[nigmastcl]

cmd.Connection=Neu;
加到你那句前面.