private void BindList()
        {
            Sensetivities.DataSource = SensetivitiesQuery.Instance.Get();
            Sensetivities.DataBind();

            Cities.DataSource = EnumUtils.GetDescriptions(typeof(Entities.Cities));
            Cities.DataBind();

            Teachers.DataSource = new TeachersQuery().Get();
            Teachers.DataBind();
        }
        private void ClearAll()
        {
            Id.Text        = "";
            FirstName.Text = "";
            LastName.Text  = "";
            BirthDate.Text = "";
            Phone.Text     = "";
            Sensetivities.ClearSelection();
            PersonTypes.SelectedValue = "0";
            Sen.Text = null;
            Teachers.ClearSelection();
            Cities.SelectedIndex = 0;

            ChildData.Visible      = false;
            TeacherData.Visible    = false;
            SupervisorData.Visible = false;
        }