public TextBook(string _userid)
{
InitializeComponent();
L1.AppendText(ViewModel.TextBookViewModel.UserText(_userid, 1));
L2.AppendText(ViewModel.TextBookViewModel.UserText(_userid, 2));
LK.AppendText(ViewModel.TextBookViewModel.UserText(_userid, 3));
PractZ.AppendText(ViewModel.TextBookViewModel.UserText(_userid, 4));
CourcePr.AppendText(ViewModel.TextBookViewModel.UserText(_userid, 5));
Import.AppendText(ViewModel.TextBookViewModel.UserText(_userid, 6));
UserId = _userid;
}