private void button1_Click(object sender, EventArgs e)//登陆
{
if (cbUser.Text == "")
{
MessageBox.Show("用户名不能为空！");
return;
}
if (tbPwd.Text == "")
{
MessageBox.Show("没有密码就想登陆吗？");
}
string constr = "Server=127.0.0.1;Database=tonghua;User Id=root;Password=5120154230;";
MySqlConnection mycon = new MySqlConnection(constr);
mycon.Open(); //打开连接
string check = "select user,password from information where user='******'and password='******'";
MySqlDataAdapter da = new MySqlDataAdapter(check, mycon); //创建适配器
DataSet ds = new DataSet(); //创建数据集
if (da.Fill(ds, "information") != 0) //判断同名
{
MessageBox.Show("恭喜你，登陆成功!"); //输出信息
this.Hide();
Socket_Server server = new Socket_Server();
server.StartPosition = FormStartPosition.CenterScreen;
server.Show();
}
else
{
MessageBox.Show("用户名或密码错误！");
return;
}
}
private void button5_Click(object sender, EventArgs e)//返回
{
this.Hide();
Socket_Server socket_Server = new Socket_Server();
socket_Server.StartPosition = FormStartPosition.CenterScreen;
socket_Server.Show();
}