Persist Row Selection during Data Operations
- As of the 2017 R2 release, persisting the selection in the Grid is available out of the box. For more information, refer to the
persistSelectionproperty.- The suggested approach in this article requires you to define an
IDfield inschema.model.
(Applicable to Kendo UI 2017.2.504 version and earlier) The following example demonstrates how to persist the row selection in a Grid while performing the paging, sorting, and filtering data operations.
<div id="grid"></div>
<script>
$(function () {
var selectedOrders = [];
var idField = "OrderID";
$("#grid").kendoGrid({
dataSource: {
type: "odata",
transport: {
read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Orders"
},
schema: {
model: {
id: "OrderID",
fields: {
OrderID: { type: "number" },
Freight: { type: "number" },
ShipName: { type: "string" },
OrderDate: { type: "date" },
ShipCity: { type: "string" }
}
}
},
pageSize: 10,
serverPaging: true,
serverFiltering: true,
serverSorting: true
},
height: 400,
selectable: "multiple",
pageable: {
buttonCount: 5
},
sortable: true,
filterable: true,
navigatable: true,
columns: [
{
field: "ShipCountry",
title: "Ship Country",
width: 300
},
{
field: "Freight",
width: 300
},
{
field: "OrderDate",
title: "Order Date",
format: "{0:dd/MM/yyyy}"
}
],
change: function (e, args) {
var grid = e.sender;
var items = grid.items();
items.each(function (idx, row) {
var idValue = grid.dataItem(row).get(idField);
if (row.className.indexOf("k-selected") >= 0) {
selectedOrders[idValue] = true;
} else if (selectedOrders[idValue]) {
delete selectedOrders[idValue];
}
});
},
dataBound: function (e) {
var grid = e.sender;
var items = grid.items();
var itemsToSelect = [];
items.each(function (idx, row) {
var dataItem = grid.dataItem(row);
if (selectedOrders[dataItem[idField]]) {
itemsToSelect.push(row);
}
});
e.sender.select(itemsToSelect);
}
});
});
</script>