private void button1_Click(object sender, EventArgs e)
{
Sqlhelp.Close();
string sql = "select admin from persen where admin='" + textBox1.Text + "'";
SqlDataReader sqlData = Sqlhelp.ExecuteSql(sql);
if (!sqlData.HasRows)
{
if (textBox2.Text == textBox3.Text)
{
Sqlhelp.Close();
sql = "insert into persen values('" + textBox1.Text + "','" + textBox2.Text + "')";
sqlData = Sqlhelp.ExecuteSql(sql);
MessageBox.Show("注册成功！");
Sqlhelp.Close();
Close();
}
else
{
MessageBox.Show("两次密码不一致！");
Sqlhelp.Close();
}
}
else
{
MessageBox.Show("用户已存在！"); Sqlhelp.Close();
}
}
private void button1_Click(object sender, EventArgs e)
{
string sql = "select admin,password from persen where admin='" + username_text.Text + "'";
SqlDataReader sqlData = Sqlhelp.ExecuteSql(sql);
if (sqlData.HasRows)
{
Sqlhelp.Close();
sql = "select password from persen where password = '******'";
sqlData = Sqlhelp.ExecuteSql(sql);
if (sqlData.HasRows)
{
MessageBox.Show("登陆成功！");
Form11.Di.user = "******";
Close();
Sqlhelp.Close();
}
else
{
MessageBox.Show("密码错误！");
}
}
else
{
MessageBox.Show("账号或密码错误！"); Sqlhelp.Close();
}
}