protected void EditForm_OnItemValidation(object sender, ref string errorMessage) { FormEngineUserControl ctrl = sender as FormEngineUserControl; // Checking countryselector if some country was selected if ((ctrl != null) && (ctrl.FieldInfo.Name == "AddressCountryID")) { int countryId = ValidationHelper.GetInteger(ctrl.Value, 0); if (countryId == 0) { errorMessage = GetString("basicform.erroremptyvalue"); } // If country has states, check if some state was selected DataSet states = StateInfoProvider.GetStates("CountryID = " + countryId, "CountryID", 1, "CountryID"); if (!DataHelper.DataSourceIsEmpty(states)) { object[,] stateObj = ctrl.GetOtherValues(); if ((stateObj == null) || (stateObj[0, 1] == null)) { errorMessage = GetString("com.address.nostate"); } } } }