Use Web API with Server-Side Operations
Kendo UI does not provide any out-of-the-box capability for implementing server-side paging, sorting, and grouping.
However, you can implement server-side data operations by using Telerik UI for ASP.NET Core. The following example demonstrates how to use the ToDataSourceResult extension method to implement the server-side data operations of paging, sorting, and grouping.
using ApiJqueryGrid.Models;
using Kendo.Mvc.Extensions;
using Kendo.Mvc.UI;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
namespace ApiJqueryGrid.Controllers
{
[Route("api/[controller]")]
public class GridController : ControllerBase
{
private static List<OrderViewModel> orders;
[HttpGet("Read")]
public DataSourceResult GetOrders([DataSourceRequest] DataSourceRequest request)
{
if (orders == null)
{
orders = Enumerable.Range(1, 50).Select(i => new OrderViewModel
{
OrderID = i,
Category = new Category() { CategoryID = 2, CategoryName = "Delivered" },
OrderDate = new DateTime(2016, 9, 15).AddDays(i % 7),
ShipName = "ShipName " + i,
ShipCity = "ShipCity " + i
}).ToList();
}
return orders.ToDataSourceResult(request);
}
[HttpPost("Create")]
public IActionResult Create(OrderViewModel order)
{
order.OrderID = orders.Count + 1;
orders.Add(order);
return new ObjectResult(new DataSourceResult { Data = new[] { order }, Total = 1 });
}
[HttpPut("Update")]
public IActionResult Update(OrderViewModel order)
{
return new StatusCodeResult(200);
}
[HttpDelete("Destroy")]
public IActionResult Destroy(OrderViewModel order)
{
orders.Remove(order);
return new StatusCodeResult(200);
}
}
}
Important
The
dataSourcetype Web API is intended for Telerik UI for ASP.NET Core. As a result, you need to includekendo.aspnetmvc.js.
<div id="grid"></div>
<script>
$("#grid").kendoGrid({
columns: [
{ "title": "Order ID", "width": "100px", "field": "OrderID" },
{ "title": "Ship City", "width": "200px", "field": "ShipCity" },
{ "title": "Ship Name", "width": "200px", "field": "ShipName" },
{ "title": "Order Date", "width": "200px", "field": "OrderDate", format: "{0:dd/MM/yyyy}" },
{ "title": "Category", "width": "200px", "field": "Category", editor: categoryDropDownList, template: "#=Category.CategoryName#" },
{ command: ["edit", "destroy"], "width": "150px" }
],
toolbar: ["create"],
groupable: true,
pageable: true,
sortable: true,
filterable: true,
editable: "inline",
dataSource: {
type: "webapi",
transport: {
read: {
url: "/api/Grid/Read"
},
update: {
url: "/api/Grid/Update"
},
create: {
url: "/api/Grid/Create"
},
destroy: {
url: "/api/Grid/Destroy"
}
},
pageSize: 20,
serverPaging: true,
serverSorting: true,
serverFiltering: true,
serverGrouping: true,
serverAggregates: true,
schema: {
data: "Data",
total: "Total",
errors: "Errors",
model: {
id: "OrderID",
fields: {
OrderID: { type: "number", editable: false },
ShipCity: { type: "string" },
ShipName: { type: "string" },
OrderDate: { type: "date" },
Category: { defaultValue: {CategoryID: 1, CategoryName: "En Route"} },
}
}
}
}
});
function categoryDropDownList(container, options) {
$('<input required name="' + options.field + '"/>')
.appendTo(container)
.kendoDropDownList({
dataTextField: "CategoryName",
dataValueField: "CategoryID",
dataSource: {
data: [{ CategoryID: 1, CategoryName: "En Route" }, { CategoryID: 2, CategoryName: "Delivered" }]
}
});
}
</script>
<div ng-app="app" ng-controller="controller">
<div kendo-grid k-options="gridOptions" k-data-source="gridDataSource"></div>
</div>
<script>
var app = angular.module("app", ["kendo.directives"]);
app.controller("controller", ["$http", "$scope", function ($http, $scope) {
$scope.categoryDataSource = new kendo.data.DataSource({
data: [{ CategoryID: 1, CategoryName: "En Route" }, { CategoryID: 2, CategoryName: "Delivered" }]
});
$scope.categoryDropDownList = function (container, options) {
$('<input kendo-drop-down-list required k-data-text-field="\'CategoryName\'" k-data-value-field="\'CategoryID\'" k-data-source="categoryDataSource" data-bind="value:' + options.field + '"/>')
.appendTo(container);
};
$scope.gridOptions = {
columns: [
{ "title": "Order ID", "width": "100px", "field": "OrderID" },
{ "title": "Ship City", "width": "200px", "field": "ShipCity" },
{ "title": "Ship Name", "width": "200px", "field": "ShipName" },
{ "title": "Order Date", "width": "200px", "field": "OrderDate", format: "{0:dd/MM/yyyy}" },
{ "title": "Category", "width": "200px", "field": "Category", editor: $scope.categoryDropDownList, template: "#=Category.CategoryName#" },
{ command: ["edit", "destroy"], "width": "150px" }
],
toolbar: ["create"],
groupable: true,
pageable: true,
sortable: true,
filterable: true,
editable: "inline"
};
$scope.model = {
id: "OrderID",
fields: {
OrderID: { type: "number", editable: false },
ShipCity: { type: "string" },
ShipName: { type: "string" },
OrderDate: { type: "date" },
Category: { defaultValue: { CategoryID: 1, CategoryName: "En Route" } },
}
};
$scope.gridDataSource = {
transport: {
read: {
url: "/api/Grid/Read",
type: "GET"
},
update: {
url: "/api/Grid/Update",
type: "PUT"
},
create: {
url: "/api/Grid/Create",
type: "POST"
},
destroy: {
url: "/api/Grid/Destroy",
type: "DELETE"
},
parameterMap: function (data, operation) {
var webapi = new kendo.data.transports.webapi({ prefix: "" });
var params = webapi.parameterMap(data);
return params;
}
},
pageSize: 20,
serverPaging: true,
serverSorting: true,
serverFiltering: true,
serverGrouping: true,
serverAggregates: true,
schema: { data: "Data", total: "Total", errors: "Errors", model: $scope.model }
};
}]);
</script>