Persist Row Selection during Data Operations in the ListView
Environment
| Product | Progress® Kendo UI® ListView for jQuery |
| Operating System | Windows 10 64bit |
| Visual Studio Version | Visual Studio 2017 |
| Preferred Language | JavaScript |
Description
How can I persist the row selection of the ListView during data operations?
Solution
The following example demonstrates how to persist row selection during data operations in the ListView.
<div id="listview"></div>
<script>
$(function () {
var dataSource = new kendo.data.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
});
var selectedOrders = [];
var idField = "OrderID";
$("#listview").kendoListView({
dataSource: dataSource,
selectable: "multiple",
pageable: true,
template: "<div>#:ShipCity# || #:Freight# || #:kendo.toString(OrderDate, 'dd/MM/yyyy')#</div>",
change: function (e, args) {
var listview = e.sender;
var items = listview.items();
items.each(function (idx, row) {
var idValue = listview.dataSource.getByUid(row.dataset.uid).get(idField);
if (row.className.indexOf("k-selected") >= 0) {
selectedOrders[idValue] = true;
} else if (selectedOrders[idValue]) {
delete selectedOrders[idValue];
}
});
},
dataBound: function (e) {
var listview = e.sender;
var items = listview.items();
var itemsToSelect = [];
items.each(function (idx, row) {
var dataItem = listview.dataSource.getByUid(row.dataset.uid);
if (selectedOrders[dataItem[idField]]) {
itemsToSelect.push(row);
}
});
listview.select(itemsToSelect);
}
});
});
</script>