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CRUD Operations
Documentation
This demo shows how to implement remote CRUD operations in the CustomStore. You can view the server implementation under the DataGridWebApiController tab in the ASP.NET MVC version of this demo. The requests sent to the server are displayed under the DataGrid.
After a cell is edited, the DataGrid can behave differently depending on the selected refresh mode: reload data from the server (the refreshMode is full), reapply data processing operations (reshape), or merely rerender the changed cells (repaint).
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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We appreciate your feedback.
var DemoApp = angular.module('DemoApp', ['dx']);
var URL = "https://js.devexpress.com/Demos/Mvc/api/DataGridWebApi";
DemoApp.controller('DemoController', function DemoController($scope) {
var ordersStore = new DevExpress.data.CustomStore({
key: "OrderID",
load: function() {
return sendRequest(URL + "/Orders");
},
insert: function(values) {
return sendRequest(URL + "/InsertOrder", "POST", {
values: JSON.stringify(values)
});
},
update: function(key, values) {
return sendRequest(URL + "/UpdateOrder", "PUT", {
key: key,
values: JSON.stringify(values)
});
},
remove: function(key) {
return sendRequest(URL + "/DeleteOrder", "DELETE", {
key: key
});
}
});
$scope.refreshMode = "reshape";
$scope.requests = [];
$scope.gridOptions = {
bindingOptions: {
"editing.refreshMode": "refreshMode"
},
dataSource: ordersStore,
repaintChangesOnly: true,
showBorders: true,
editing: {
mode: "cell",
allowAdding: true,
allowUpdating: true,
allowDeleting: true
},
scrolling: {
mode: "virtual"
},
columns: [{
dataField: "CustomerID",
caption: "Customer",
lookup: {
dataSource: {
paginate: true,
store: new DevExpress.data.CustomStore({
key: "Value",
loadMode: "raw",
load: function() {
return sendRequest(URL + "/CustomersLookup");
}
})
},
valueExpr: "Value",
displayExpr: "Text"
}
}, {
dataField: "OrderDate",
dataType: "date"
}, {
dataField: "Freight"
}, {
dataField: "ShipCountry"
}, {
dataField: "ShipVia",
caption: "Shipping Company",
dataType: "number",
lookup: {
dataSource: new DevExpress.data.CustomStore({
key: "Value",
loadMode: "raw",
load: function() {
return sendRequest(URL + "/ShippersLookup");
}
}),
valueExpr: "Value",
displayExpr: "Text"
}
}
],
summary: {
totalItems: [{
column: "CustomerID",
summaryType: "count"
}, {
column: "Freight",
valueFormat: "#0.00",
summaryType: "sum"
}]
}
};
$scope.selectBoxOptions = {
bindingOptions: {
value: "refreshMode"
},
items: ["full", "reshape", "repaint"]
};
$scope.buttonOptions = {
text: "Clear",
onClick: function() {
$scope.requests = [];
}
};
function sendRequest(url, method, data) {
var d = $.Deferred();
method = method || "GET";
logRequest(method, url, data);
$.ajax(url, {
method: method || "GET",
data: data,
cache: false,
xhrFields: { withCredentials: true }
}).done(function(result) {
d.resolve(method === "GET" ? result.data : result);
}).fail(function(xhr) {
d.reject(xhr.responseJSON ? xhr.responseJSON.Message : xhr.statusText);
});
return d.promise();
}
function logRequest(method, url, data) {
var args = Object.keys(data || {}).map(function(key) {
return key + "=" + data[key];
}).join(" ");
var time = DevExpress.localization.formatDate(new Date(), "HH:mm:ss");
$scope.requests.unshift([time, method, url.slice(URL.length), args].join(" "));
}
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/css/dx.light.css" />
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.16/angular.min.js"></script>
<script>window.angular || document.write(decodeURIComponent('%3Cscript src="js/angular.min.js"%3E%3C/script%3E'))</script>
<script src="https://cdn3.devexpress.com/jslib/20.2.4/js/dx.all.js"></script>
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="index.js"></script>
</head>
<body class="dx-viewport">
<div class="demo-container" ng-app="DemoApp" ng-controller="DemoController">
<div id="grid" dx-data-grid="gridOptions"></div>
<div class="options">
<div class="caption">Options</div>
<div class="option">
<span>Refresh Mode:</span>
<div id="refresh-mode" dx-select-box="selectBoxOptions"></div>
</div>
<div id="requests">
<div>
<div class="caption">Network Requests</div>
<div id="clear" dx-button="buttonOptions"></div>
</div>
<ul>
<li ng-repeat="request in requests track by $index">{{request}}</li>
</ul>
</div>
</div>
</div>
</body>
</html>
#grid {
height: 440px;
}
.options {
padding: 20px;
margin-top: 20px;
background-color: rgba(191, 191, 191, 0.15);
}
.caption {
margin-bottom: 10px;
font-weight: 500;
font-size: 18px;
}
.option {
margin-bottom: 10px;
}
.option > span {
position: relative;
top: 2px;
margin-right: 10px;
}
.option > .dx-widget {
display: inline-block;
vertical-align: middle;
}
#requests .caption {
float: left;
padding-top: 7px;
}
#requests > div {
padding-bottom: 5px;
}
#requests > div:after {
content: "";
display: table;
clear: both;
}
#requests #clear {
float: right;
}
#requests ul {
list-style: none;
max-height: 100px;
overflow: auto;
margin: 0;
}
#requests ul li {
padding: 7px 0;
border-bottom: 1px solid #dddddd;
}
#requests ul li:last-child {
border-bottom: none;
}