[SAPUI5] UI Validation

validation.js

debugger;
var softModel = this.getView().getModel('softModel');
var softModelData = softModel.getData();
var selectedRequestID = this.getView().byId('RequestTypeSelect').getSelectedKey();
var i18nBundle = this.getView().getModel('i18n').getResourceBundle();
switch (selectedRequestID) {
    case "2":
        if (softModel.getProperty("/selectedBankAccount") == "0") {
            // return [false, "Please select bank account"];
            return [false, i18nBundle.getText("e_type2__bank_account_select")];
        }
        break;
    case "4":

        if (!(parseFloat(softModelData.fragment4.Available.AmtToRequest) <= parseFloat(softModelData.fragment4.Available.AvailableAmt) &&
                parseFloat(softModelData.fragment4.Available.AmtToRequest) >= 0)) {
            return [false, i18nBundle.getText("e_type4_invalid_amount")];
        }

        if (parseFloat(softModelData.fragment4.Available.AmtToRequest) > parseFloat(softModelData.fragment4.Available.AvailableAmt)) {
            // return [false, "Request amount cannot be greater than available amount."];
            return [false, i18nBundle.getText("e_type4_invalid_amount")];
        }

        // if (parseFloat(softModelData.fragment4.Available.AmtToRequest) <= 0) {
        // return [false, i18nBundle.getText("e_type4_invalid_amount")];
        // }
        var emptyExtraPaymentsCounter = 0;
        debugger;
        for (var i = 0; i < softModelData.fragment4.ExtraPayments.length; i++) {
            if (parseFloat(softModelData.fragment4.ExtraPayments[i].AmtToRequest) === 0) {
                emptyExtraPaymentsCounter = emptyExtraPaymentsCounter + 1;
            }

            if (i === softModelData.fragment4.ExtraPayments.length - 1) {
                //Access to last record in extra pagos
                if (emptyExtraPaymentsCounter === softModelData.fragment4.ExtraPayments.length && parseFloat(softModelData.fragment4.Available.AmtToRequest) ==
                    0) {
                    return [false, "Please enter prepayment amount"];
                }
            }

            if (!(parseFloat(softModelData.fragment4.ExtraPayments[i].AmtToRequest) <= parseFloat(softModelData.fragment4.ExtraPayments[i].AvailableAmt) &&
                    parseFloat(softModelData.fragment4.ExtraPayments[i].AmtToRequest) >= 0)) {
                // return [false, "Amount to Request cannot be greater than Available amount for " + softModelData.fragment4.ExtraPayments[i].Label];
                return [false, i18nBundle.getText("e_type4_invalid_amount_extrapago", [softModelData.fragment4.ExtraPayments[i].Label])];
            }
        }

        if (this.getView().byId('BankAccountSelect').getSelectedKey() == 0) {
            // return [false, "Please select bank account"];
            return [false, i18nBundle.getText("e_type4__bank_account_select")];
        }
        break;
    default:
        if (parseFloat(softModelData.ModalContent.MaximumMonths) > 0) {
            if (parseInt(softModelData.ModalContent.Months) === 0) {
                // return [false, "Please select a Month"];
                return [false, i18nBundle.getText("e_typeother_select_month")];
            }
        }
        if (parseFloat(softModelData.ModalContent.AmountToRequest) <= 0) {
            // return [false, "Please enter a valid Amount to Request"];
            return [false, i18nBundle.getText("e_typeother_invalid_amount")];
        }
        if (this.getView().byId('BankAccountSelect').getSelectedKey() == 0) {
            // return [false, "Please select a Bank Account"];
            return [false, i18nBundle.getText("e_typeother__bank_account_select")];
        }
        if (softModelData.fragmentOther.AttachmentRequired === true && this.getView().byId('UploadDocumentUploader').oFilePath.getProperty(
                'value') == "") {
            return [false, i18nBundle.getText("e_typeother_missing_attachment")];
        }
        break;
}
return [true, "Succes"];