public LoginWindow(AbstractSignInManager signInMgr)
{
SignInManager = signInMgr;
SignInManager.OnLogged += OnLogSuccess;
SignInManager.OnLoginError += OnLoginError;
InitializeComponent();
var userInfo = signInMgr.SignInOptions;
LoginCombo.Text = userInfo.FrontServer;
userTxt.Text = userInfo.UserName;
passwordTxt.Password = userInfo.Password;
}