igGrid events validation

by georgianastasov

HTML

<script src="https://igniteui.com/js/modernizr.min.js"></script>
<script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.10.3/jquery-ui.min.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.core.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.lob.js"></script>
<script src="https://igniteui.com/js/apiviewer.js"></script>
<script src="https://igniteui.com/js-data/northwind"></script>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet"></link>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/structure/infragistics.css" rel="stylesheet"></link>
<link href="https://igniteui.com/css/apiviewer.css" rel="stylesheet" type="text/css"></link>

<table id="grid"></table>

JavaScript

$(function () {
            $("#grid").igGrid({
                virtualization: false,
                autoGenerateColumns: false,
                renderCheckboxes: true,
                primaryKey: "EmployeeID",
                columns: [
                    { headerText: "Employee ID", key: "EmployeeID", dataType: "number" },
                    { headerText: "First Name", key: "FirstName", dataType: "string" },
                    { headerText: "Last Name", key: "LastName", dataType: "string" },
                    { headerText: "Title", key: "Title", dataType: "string" },
                ],
                dataSource: northwind,
                dataSourceType: "json",
                responseDataKey: "results",
                height: "400px",
                width: "100%",

                features: [
                    {
                        name: "Updating",
                        enableAddRow: true,
                        editMode: "row",
                        enableDeleteRow: true,
                        rowEditDialogContainment: "owner",
                        showReadonlyEditors: false,
                        enableDataDirtyException: false,
                        columnSettings: [
                            { columnKey: "EmployeeID", readOnly: true },
                            { columnKey: "FirstName", editorType: "text" },
                            { columnKey: "LastName", editorType: "text" },
                            { columnKey: "Title", editorType: "text" },
                        ],

                        editRowStarting: function (evt, ui) {
                            let isNewRow = ui.rowAdding;
                            console.log("Edit Row Starting - Is new row:", isNewRow);
                        },

                        editRowEnding: function (evt, ui) {
                            var rowData = ui.values;
                            var originalRow = $("#grid").igGrid("findRecordByKey", ui.rowID);
         ...