protected void btnAddNewAdmin_Click(object sender, EventArgs e)
        {
            if (valid.IsBlank(txtAdminFirstName.Text) || valid.IsBlank(txtAdminLastName.Text) || valid.IsBlank(txtAdminTUID.Text))
            {
                lblRequired.Visible = true;
            }
            else
            {
                string tuID  = txtAdminTUID.Text;
                int    count = Convert.ToInt32(DbMethodsObj.CheckIfDeactivatedAdminExists(tuID));
                if (count == 1)
                {
                    DbMethodsObj.ReactivateAdmin(tuID);
                }
                else
                {
                    string   firstName      = txtAdminFirstName.Text;
                    string   lastName       = txtAdminLastName.Text;
                    DateTime lastUpdateDate = DateTime.Now;
                    string   lastUpdateUser = lastName + ", " + firstName;

                    DbMethodsObj.CreateAdmin(tuID, firstName, lastName, lastUpdateDate, lastUpdateUser);
                }
                gvAdmins.DataSource = DbMethodsObj.GetAllAdmins();
                gvAdmins.DataBind();

                txtAdminTUID.Text      = "";
                txtAdminLastName.Text  = "";
                txtAdminFirstName.Text = "";
            }
        }