private void AddAjaxSettings()
{
RadAjaxManager ajaxManager = ParentPage.GetAjaxManager();
Panel pnlErrors = (Panel)ParentPage.Master.FindControl("pnlErrors");
ajaxManager.AjaxSettings.AddAjaxSetting(pnlUserSettings, pnlErrors);
ajaxManager.AjaxSettings.AddAjaxSetting(btnSaveConfiguration, hdnUserSettingsDirty);
ajaxManager.AjaxSettings.AddAjaxSetting(btnSaveConfiguration, pnlErrors);
}