<dx-diagram #diagram id="diagram" (onRequestEditOperation)="requestEditOperationHandler($event)" (onRequestLayoutUpdate)="requestLayoutUpdateHandler($event)">
<dxi-custom-shape
category="items"
[type]="'root'"
baseType="octagon"
[defaultText]="'Development'">
</dxi-custom-shape>
<dxi-custom-shape
category="items"
[type]="'team'"
[title]="'Team'"
baseType="ellipse"
[defaultText]="'Team Name'">
</dxi-custom-shape>
<dxi-custom-shape
category="items"
[type]="'employee'"
[title]="'Employee'"
baseType="rectangle"
[defaultText]="'Employee Name'">
</dxi-custom-shape>
<dxo-nodes [dataSource]="orgItemsDataSource" keyExpr="ID" typeExpr="Type" textExpr="Name" parentKeyExpr="ParentID">
<dxo-auto-layout type="tree"></dxo-auto-layout>
</dxo-nodes>
<dxo-context-toolbox [width]="100" [shapeIconsPerRow]="2" [shapes]="['team', 'employee']">
<dxi-group category="general" title="General"></dxi-group>
</dxo-context-toolbox>
<dxo-toolbox [shapeIconsPerRow]="2">
<dxi-group title="Items" [shapes]="['team', 'employee']"></dxi-group>
</dxo-toolbox>
<dxo-properties-panel visibility="disabled">
</dxo-properties-panel>
</dx-diagram>
import { NgModule, Component, ViewChild, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { HttpClient, HttpClientModule } from '@angular/common/http';
import { DxDiagramModule, DxDiagramComponent } from 'devextreme-angular';
import notify from 'devextreme/ui/notify';
import { Service } from './app.service';
import ArrayStore from 'devextreme/data/array_store'
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
providers: [Service],
preserveWhitespaces: true
})
export class AppComponent {
items: any[];
orgItemsDataSource: ArrayStore;
constructor(service: Service) {
this.items = service.getOrgItems();
this.orgItemsDataSource = new ArrayStore({
key: "ID",
data: this.items
});
}
showToast(text) {
notify({
position: { at: "top", my: "top", of: "#diagram", offset: "0 4" },
message: text,
type: "warning",
delayTime: 2000
});
}
requestLayoutUpdateHandler(e) {
for(var i = 0; i < e.changes.length; i++) {
if(e.changes[i].type === 'remove')
e.allowed = true;
else if(e.changes[i].data.ParentID !== undefined && e.changes[i].data.ParentID !== null)
e.allowed = true;
}
}
requestEditOperationHandler(e) {
var dataItem;
if(e.operation === "addShape") {
if(e.args.shape.type !== "employee" && e.args.shape.type !== "team") {
!e.updateUI && this.showToast("You can add only a 'Team' or 'Employee' shape.");
e.allowed = false;
}
}
else if(e.operation === "deleteShape") {
dataItem = e.args.shape && e.args.shape.dataItem;
if(dataItem && dataItem.Type === "root") {
!e.updateUI && this.showToast("You cannot delete the 'Development' shape.");
e.allowed = false;
}
if(dataItem && dataItem.Type === "team") {
var children = this.items.filter(function(item) {
return item.ParentID === dataItem.ID;
});
if(children.length > 0) {
!e.updateUI && this.showToast("You cannot delete a 'Team' shape that has a child shape.");
e.allowed = false;
}
}
}
else if(e.operation === "resizeShape") {
if(e.args.newSize.width < 1 || e.args.newSize.height < 0.75) {
!e.updateUI && this.showToast("The shape size is too small.");
e.allowed = false;
}
}
else if(e.operation === "changeConnection") {
dataItem = e.args.newShape && e.args.newShape.dataItem;
if(dataItem && dataItem.Type === "root" && e.args.connectorPosition === "end") {
!e.updateUI && this.showToast("The 'Development' shape cannot have an incoming connection.");
e.allowed = false;
}
if(dataItem && dataItem.Type === "team" && e.args.connectorPosition === "end") {
if(dataItem && dataItem.ParentID !== undefined && dataItem.ParentID !== null) {
!e.updateUI && this.showToast("A 'Team' shape can have only one incoming connection.");
e.allowed = false;
}
}
if(dataItem && dataItem.Type === "employee") {
if(e.args.connectorPosition === "start")
e.allowed = false;
if(e.args.connectorPosition === "end" && dataItem.ParentID !== undefined && dataItem.ParentID !== null) {
!e.updateUI && this.showToast("An 'Employee' shape can have only one incoming connection.");
e.allowed = false;
}
}
}
else if(e.operation === "changeConnectorPoints") {
if(e.args.newPoints.length > 2) {
!e.updateUI && this.showToast("You cannot add points to a connector.");
e.allowed = false;
}
}
else if(e.operation === "beforeChangeShapeText") {
dataItem = e.args.shape && e.args.shape.dataItem;
if(dataItem && dataItem.Type === "root") {
!e.updateUI && this.showToast("You cannot change the 'Development' shape's text.");
e.allowed = false;
}
}
else if(e.operation === "changeShapeText") {
if(e.args.text === "") {
!e.updateUI && this.showToast("A shape text cannot be empty.");
e.allowed = false;
}
}
else if(e.operation === "beforeChangeConnectorText") {
e.allowed = false;
}
}
}
@NgModule({
imports: [
BrowserModule,
HttpClientModule,
DxDiagramModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #diagram {
height: 600px;
}
import { Injectable } from '@angular/core';
export class OrgItem {
ID: string;
Name: string;
Type?: string;
ParentID?: string;
}
let orgItems: OrgItem[] = [
{
"ID":"106",
"Name":"Development",
"Type":"root"
},
{
"ID":"107",
"Name":"WinForms Team",
"Type": "team",
"ParentID": "106"
},
{
"ID":"109",
"Name":"Javascript Team",
"Type": "team",
"ParentID": "106"
},
{
"ID":"110",
"Name":"ASP.NET Team",
"Type": "team",
"ParentID": "106"
},
{
"ID":"112",
"Name": "Ana Trujillo",
"Type": "employee",
"ParentID": "107"
},
{
"ID":"113",
"Name":"Antonio Moreno",
"Type": "employee",
"ParentID": "107"
},
{
"ID":"115",
"Name":"Christina Berglund",
"Type": "employee",
"ParentID": "109"
},
{
"ID":"116",
"Name":"Hanna Moos",
"Type": "employee",
"ParentID": "109"
},
{
"ID":"119",
"Name":"Laurence Lebihan",
"Type": "employee",
"ParentID": "110"
},
{
"ID":"122",
"Name": "Patricio Simpson",
"Type": "employee",
"ParentID": "110"
},
{
"ID":"123",
"Name":"Francisco Chang",
"Type": "employee",
"ParentID": "110"
}
];
@Injectable()
export class Service {
getOrgItems() {
return orgItems;
}
}
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here:
// https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "system",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
},
'devextreme/localization.js': {
"esModule": true
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.5.3/lib/typescript.js',
'@angular': 'npm:@angular',
'tslib': 'npm:tslib@2.0.3/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.4',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.7/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.5',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.8',
'devextreme-angular': 'npm:devextreme-angular@20.2.4',
'preact': 'npm:preact@10.5.7/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.7/hooks/dist/hooks.js'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
packageConfigPaths: [
"npm:@angular/*/package.json",
"npm:@angular/common/*/package.json",
"npm:rxjs/package.json",
"npm:rxjs/operators/package.json",
"npm:devextreme-angular/*/package.json",
"npm:devextreme-angular/ui/*/package.json",
"npm:devextreme-angular/package.json",
"npm:devexpress-diagram/package.json",
"npm:devexpress-gantt/package.json",
]
});
<!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" />
<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" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/css/dx-diagram.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.10.2/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import('app').catch(console.error.bind(console));
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>