public SignUpWindow()
{
InitializeComponent();
_Email = String.Empty; _Surname = String.Empty; _Name = String.Empty;
_Adres = String.Empty;
be[0] = Email.GetBindingExpression(TextBox.TextProperty);
be[1] = Surname.GetBindingExpression(TextBox.TextProperty);
be[2] = FirstName.GetBindingExpression(TextBox.TextProperty);
be[3] = Adres.GetBindingExpression(TextBox.TextProperty);
be[4] = Password.GetBindingExpression(TextBox.TextProperty);
be[5] = Repeat.GetBindingExpression(TextBox.TextProperty);
}