public Form1()
{
InitializeComponent();
UP = new DataCenter();
// UP.connect("127.0.0.1");
EA = new ElevApp();
FileStream fs = new FileStream("IP.txt", FileMode.Open, FileAccess.Read);
StreamReader sr = new StreamReader(fs);
string ip = sr.ReadLine();
Console.WriteLine(ip);
UP.connect(ip);
sr.Close();
fs.Close();
}