import React from 'react';
import Diagram, {
Nodes, AutoLayout, ContextToolbox, Toolbox, Group, IContextToolboxProps,
} from 'devextreme-react/diagram';
import { createStore } from 'devextreme-aspnet-data-nojquery';
const url = 'https://js.devexpress.com/Demos/Mvc/api/DiagramEmployees';
const dataSource = createStore({
key: 'ID',
loadUrl: `${url}/Employees`,
insertUrl: `${url}/InsertEmployee`,
updateUrl: `${url}/UpdateEmployee`,
deleteUrl: `${url}/DeleteEmployee`,
onBeforeSend(method, ajaxOptions) {
ajaxOptions.xhrFields = { withCredentials: true };
},
onInserting(values) {
values.ID = 0;
values.Title = values.Title || 'New Position';
values.Prefix = 'Mr';
values.FullName = 'New Employee';
values.City = 'LA';
values.State = 'CA';
values.HireDate = new Date();
},
});
const shapes: IContextToolboxProps['shapes'] = ['rectangle'];
export default function App() {
return (
<Diagram id="diagram">
<Nodes dataSource={dataSource} keyExpr="ID" textExpr="Title" parentKeyExpr="HeadID">
<AutoLayout type="tree" />
</Nodes>
<ContextToolbox shapeIconsPerRow={2} width={100} shapes={shapes}>
</ContextToolbox>
<Toolbox showSearch={false} shapeIconsPerRow={2}>
<Group title="Items" shapes={shapes} />
</Toolbox>
</Diagram>
);
}
import React from 'react';
import Diagram, {
Nodes,
AutoLayout,
ContextToolbox,
Toolbox,
Group,
} from 'devextreme-react/diagram';
import { createStore } from 'devextreme-aspnet-data-nojquery';
const url = 'https://js.devexpress.com/Demos/Mvc/api/DiagramEmployees';
const dataSource = createStore({
key: 'ID',
loadUrl: `${url}/Employees`,
insertUrl: `${url}/InsertEmployee`,
updateUrl: `${url}/UpdateEmployee`,
deleteUrl: `${url}/DeleteEmployee`,
onBeforeSend(method, ajaxOptions) {
ajaxOptions.xhrFields = { withCredentials: true };
},
onInserting(values) {
values.ID = 0;
values.Title = values.Title || 'New Position';
values.Prefix = 'Mr';
values.FullName = 'New Employee';
values.City = 'LA';
values.State = 'CA';
values.HireDate = new Date();
},
});
const shapes = ['rectangle'];
export default function App() {
return (
<Diagram id="diagram">
<Nodes
dataSource={dataSource}
keyExpr="ID"
textExpr="Title"
parentKeyExpr="HeadID"
>
<AutoLayout type="tree" />
</Nodes>
<ContextToolbox
shapeIconsPerRow={2}
width={100}
shapes={shapes}
></ContextToolbox>
<Toolbox
showSearch={false}
shapeIconsPerRow={2}
>
<Group
title="Items"
shapes={shapes}
/>
</Toolbox>
</Diagram>
);
}
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
window.exports = window.exports || {};
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
jsx: 'react',
},
meta: {
'react': {
'esModule': true,
},
'typescript': {
'exports': 'ts',
},
'devextreme/time_zone_utils.js': {
'esModule': true,
},
'devextreme/localization.js': {
'esModule': true,
},
'devextreme/viz/palette.js': {
'esModule': true,
},
'devextreme-aspnet-data-nojquery': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.8.1/prop-types.js',
'devextreme-aspnet-data-nojquery': 'npm:devextreme-aspnet-data-nojquery@3.0.0/index.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@24.1.7/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.7/cjs',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.12/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
},
packages: {
'devextreme': {
defaultExtension: 'js',
},
'devextreme-react': {
main: 'index.js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/localization/messages': {
format: 'json',
defaultExtension: 'json',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.13/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
<!DOCTYPE html>
<html lang="en">
<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=5.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx-diagram.min.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import("./index.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
#diagram {
height: 725px;
}
using System;
using System.Collections.Generic;
namespace DevExtreme.MVC.Demos.Models.Diagram {
public class InMemoryEmployeesDataContext : InMemoryDataContext<Employee> {
public ICollection<Employee> Employees => ItemsInternal;
protected override IEnumerable<Employee> Source => SampleData.SampleData.DiagramEmployees;
protected override int GetKey(Employee item) => item.ID;
protected override void SetKey(Employee item, int key) => item.ID = key;
}
}
using DevExtreme.AspNet.Data;
using DevExtreme.AspNet.Mvc;
using DevExtreme.MVC.Demos.Models.Diagram;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Formatting;
using System.Web.Http;
namespace DevExtreme.MVC.Demos.Controllers.ApiControllers {
[Route("api/DiagramEmployees/{action}", Name = "DiagramEmployees")]
public class DiagramEmployeesController : ApiController {
InMemoryEmployeesDataContext db = new InMemoryEmployeesDataContext();
[HttpGet]
public HttpResponseMessage Employees(DataSourceLoadOptions loadOptions) {
return Request.CreateResponse(DataSourceLoader.Load(db.Employees, loadOptions));
}
[HttpPost]
public HttpResponseMessage InsertEmployee(FormDataCollection form) {
var values = form.Get("values");
var newEmployee = new Employee();
JsonConvert.PopulateObject(values, newEmployee);
Validate(newEmployee);
if(!ModelState.IsValid)
return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState.GetFullErrorMessage());
db.Employees.Add(newEmployee);
db.SaveChanges();
return Request.CreateResponse(HttpStatusCode.Created, newEmployee);
}
[HttpPut]
public HttpResponseMessage UpdateEmployee(FormDataCollection form) {
var key = Convert.ToInt32(form.Get("key"));
var values = form.Get("values");
var employee = db.Employees.First(e => e.ID == key);
JsonConvert.PopulateObject(values, employee);
Validate(employee);
if(!ModelState.IsValid)
return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState.GetFullErrorMessage());
db.SaveChanges();
return Request.CreateResponse(HttpStatusCode.OK, employee);
}
[HttpDelete]
public void DeleteEmployee(FormDataCollection form) {
var key = Convert.ToInt32(form.Get("key"));
var employee = db.Employees.First(e => e.ID == key);
db.Employees.Remove(employee);
db.SaveChanges();
}
}
}