Form Editing
The TreeList can use the Form component to arrange cell editors when users modify a row. The Form allows users to edit values from visible and hidden columns.
To enable form edit mode, configure the following properties:
- Set editing.mode to "form"
- Assign true to the editing object's allowAdding, allowUpdating, and allowDeleting properties.
A column's default editor is defined automatically based on this column's dataType. To customize this editor or replace it with another editor, use the column's formItem object. For information on settings that you can define in the formItem object, refer to the SimpleItem help topic.
You can also set up the edit Form from scratch. The component's configuration section lists available settings. Specify these settings in the editing.form object. Refer to this object's description for information about form edit mode limitations.
This demo also illustrates the following event handlers:
-
onInitNewRow
Populates form editors of a new row with default values. In this demo, onInitNewRow sets "John Heart" as the initialHeadfor new rows. -
onEditorPreparing
Customizes form editors. In this demo, this handler forbids users to edit theHeadvalue of John Heart.
Refer to the following help topic to see the full list of the events that edit operations raise: Editing Events.
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.
Thank you!
We appreciate your feedback.
We appreciate your feedback.
<div id="tree-list-demo">
<dx-tree-list
id="employees"
[dataSource]="employees"
keyExpr="ID"
parentIdExpr="Head_ID"
[showRowLines]="true"
[showBorders]="true"
[columnAutoWidth]="true"
[expandedRowKeys]="[1, 2, 3, 4, 5]"
(onEditorPreparing)="editorPreparing($event)"
(onInitNewRow)="initNewRow($event)">
<dxo-editing
mode="form"
[allowUpdating]="true"
[allowDeleting]="true"
[allowAdding]="true">
</dxo-editing>
<dxi-column dataField="Full_Name">
<dxi-validation-rule type="required"></dxi-validation-rule>
</dxi-column>
<dxi-column dataField="Prefix" caption="Title">
<dxi-validation-rule type="required"></dxi-validation-rule>
</dxi-column>
<dxi-column dataField="Head_ID" caption="Head" [visible]="false">
<dxo-lookup
[dataSource]="lookupData"
valueExpr="ID"
displayExpr="Full_Name">
</dxo-lookup>
<dxi-validation-rule type="required"></dxi-validation-rule>
</dxi-column>
<dxi-column dataField="Title" caption="Position">
<dxi-validation-rule type="required"></dxi-validation-rule>
</dxi-column>
<dxi-column dataField="City" [width]="150">
<dxi-validation-rule type="required"></dxi-validation-rule>
</dxi-column>
<dxi-column dataField="Hire_Date" dataType="date" [width]="120">
<dxi-validation-rule type="required"></dxi-validation-rule>
</dxi-column>
<dxi-column type="buttons">
<dxi-button name="edit"></dxi-button>
<dxi-button name="delete"></dxi-button>
</dxi-column>
</dx-tree-list>
</div>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxTreeListModule } from 'devextreme-angular';
import { Employee, Service } from './app.service';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
providers: [Service]
})
export class AppComponent {
employees: Employee[];
lookupData: any;
constructor(service: Service) {
this.employees = service.getEmployees();
this.lookupData = {
store: this.employees,
sort: "Full_Name"
};
}
editorPreparing(e) {
if(e.dataField === "Head_ID" && e.row.data.ID === 1) {
e.editorOptions.disabled = true;
e.editorOptions.value = null;
}
}
initNewRow(e) {
e.data.Head_ID = 1;
}
}
@NgModule({
imports: [
BrowserModule,
DxTreeListModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #tree-list-demo {
min-height: 700px;
}
import { Injectable } from '@angular/core';
export class Employee {
ID: number;
Head_ID: number;
Full_Name: string;
Prefix: string;
Title: string;
City: string;
State: string;
Email: string;
Skype: string;
Mobile_Phone: string;
Birth_Date: string;
Hire_Date: string;
}
var employees: Employee[] = [{
"ID": 1,
"Head_ID": 0,
"Full_Name": "John Heart",
"Prefix": "Mr.",
"Title": "CEO",
"City": "Los Angeles",
"State": "California",
"Email": "jheart@dx-email.com",
"Skype": "jheart_DX_skype",
"Mobile_Phone": "(213) 555-9392",
"Birth_Date": "1964-03-16",
"Hire_Date": "1995-01-15"
}, {
"ID": 2,
"Head_ID": 1,
"Full_Name": "Samantha Bright",
"Prefix": "Dr.",
"Title": "COO",
"City": "Los Angeles",
"State": "California",
"Email": "samanthab@dx-email.com",
"Skype": "samanthab_DX_skype",
"Mobile_Phone": "(213) 555-2858",
"Birth_Date": "1966-05-02",
"Hire_Date": "2004-05-24"
}, {
"ID": 3,
"Head_ID": 1,
"Full_Name": "Arthur Miller",
"Prefix": "Mr.",
"Title": "CTO",
"City": "Denver",
"State": "Colorado",
"Email": "arthurm@dx-email.com",
"Skype": "arthurm_DX_skype",
"Mobile_Phone": "(310) 555-8583",
"Birth_Date": "1972-07-11",
"Hire_Date": "2007-12-18"
}, {
"ID": 4,
"Head_ID": 1,
"Full_Name": "Robert Reagan",
"Prefix": "Mr.",
"Title": "CMO",
"City": "Bentonville",
"State": "Arkansas",
"Email": "robertr@dx-email.com",
"Skype": "robertr_DX_skype",
"Mobile_Phone": "(818) 555-2387",
"Birth_Date": "1974-09-07",
"Hire_Date": "2002-11-08"
}, {
"ID": 5,
"Head_ID": 1,
"Full_Name": "Greta Sims",
"Prefix": "Ms.",
"Title": "HR Manager",
"City": "Atlanta",
"State": "Georgia",
"Email": "gretas@dx-email.com",
"Skype": "gretas_DX_skype",
"Mobile_Phone": "(818) 555-6546",
"Birth_Date": "1977-11-22",
"Hire_Date": "1998-04-23"
}, {
"ID": 6,
"Head_ID": 3,
"Full_Name": "Brett Wade",
"Prefix": "Mr.",
"Title": "IT Manager",
"City": "Reno",
"State": "Nevada",
"Email": "brettw@dx-email.com",
"Skype": "brettw_DX_skype",
"Mobile_Phone": "(626) 555-0358",
"Birth_Date": "1968-12-01",
"Hire_Date": "2009-03-06"
}, {
"ID": 7,
"Head_ID": 5,
"Full_Name": "Sandra Johnson",
"Prefix": "Mrs.",
"Title": "Controller",
"City": "Beaver",
"State": "Utah",
"Email": "sandraj@dx-email.com",
"Skype": "sandraj_DX_skype",
"Mobile_Phone": "(562) 555-2082",
"Birth_Date": "1974-11-15",
"Hire_Date": "2005-05-11"
}, {
"ID": 8,
"Head_ID": 4,
"Full_Name": "Ed Holmes",
"Prefix": "Dr.",
"Title": "Sales Manager",
"City": "Malibu",
"State": "California",
"Email": "edwardh@dx-email.com",
"Skype": "edwardh_DX_skype",
"Mobile_Phone": "(310) 555-1288",
"Birth_Date": "1973-07-14",
"Hire_Date": "2005-06-19"
}, {
"ID": 9,
"Head_ID": 3,
"Full_Name": "Barb Banks",
"Prefix": "Mrs.",
"Title": "Support Manager",
"City": "Phoenix",
"State": "Arizona",
"Email": "barbarab@dx-email.com",
"Skype": "barbarab_DX_skype",
"Mobile_Phone": "(310) 555-3355",
"Birth_Date": "1979-04-14",
"Hire_Date": "2002-08-07"
}, {
"ID": 10,
"Head_ID": 2,
"Full_Name": "Kevin Carter",
"Prefix": "Mr.",
"Title": "Shipping Manager",
"City": "San Diego",
"State": "California",
"Email": "kevinc@dx-email.com",
"Skype": "kevinc_DX_skype",
"Mobile_Phone": "(213) 555-2840",
"Birth_Date": "1978-01-09",
"Hire_Date": "2009-08-11"
}, {
"ID": 11,
"Head_ID": 5,
"Full_Name": "Cindy Stanwick",
"Prefix": "Ms.",
"Title": "HR Assistant",
"City": "Little Rock",
"State": "Arkansas",
"Email": "cindys@dx-email.com",
"Skype": "cindys_DX_skype",
"Mobile_Phone": "(818) 555-6655",
"Birth_Date": "1985-06-05",
"Hire_Date": "2008-03-24"
}, {
"ID": 12,
"Head_ID": 8,
"Full_Name": "Sammy Hill",
"Prefix": "Mr.",
"Title": "Sales Assistant",
"City": "Pasadena",
"State": "California",
"Email": "sammyh@dx-email.com",
"Skype": "sammyh_DX_skype",
"Mobile_Phone": "(626) 555-7292",
"Birth_Date": "1984-02-17",
"Hire_Date": "2012-02-01"
}, {
"ID": 13,
"Head_ID": 10,
"Full_Name": "Davey Jones",
"Prefix": "Mr.",
"Title": "Shipping Assistant",
"City": "Pasadena",
"State": "California",
"Email": "davidj@dx-email.com",
"Skype": "davidj_DX_skype",
"Mobile_Phone": "(626) 555-0281",
"Birth_Date": "1983-03-06",
"Hire_Date": "2011-04-24"
}, {
"ID": 14,
"Head_ID": 10,
"Full_Name": "Victor Norris",
"Prefix": "Mr.",
"Title": "Shipping Assistant",
"City": "Little Rock",
"State": "Arkansas",
"Email": "victorn@dx-email.com",
"Skype": "victorn_DX_skype",
"Mobile_Phone": "(213) 555-9278",
"Birth_Date": "1986-07-23",
"Hire_Date": "2012-07-23"
}, {
"ID": 15,
"Head_ID": 10,
"Full_Name": "Mary Stern",
"Prefix": "Ms.",
"Title": "Shipping Assistant",
"City": "Beaver",
"State": "Utah",
"Email": "marys@dx-email.com",
"Skype": "marys_DX_skype",
"Mobile_Phone": "(818) 555-7857",
"Birth_Date": "1982-04-08",
"Hire_Date": "2012-08-12"
}, {
"ID": 16,
"Head_ID": 10,
"Full_Name": "Robin Cosworth",
"Prefix": "Mrs.",
"Title": "Shipping Assistant",
"City": "Los Angeles",
"State": "California",
"Email": "robinc@dx-email.com",
"Skype": "robinc_DX_skype",
"Mobile_Phone": "(818) 555-0942",
"Birth_Date": "1981-06-12",
"Hire_Date": "2012-09-01"
}, {
"ID": 17,
"Head_ID": 9,
"Full_Name": "Kelly Rodriguez",
"Prefix": "Ms.",
"Title": "Support Assistant",
"City": "Boise",
"State": "Idaho",
"Email": "kellyr@dx-email.com",
"Skype": "kellyr_DX_skype",
"Mobile_Phone": "(818) 555-9248",
"Birth_Date": "1988-05-11",
"Hire_Date": "2012-10-13"
}, {
"ID": 18,
"Head_ID": 9,
"Full_Name": "James Anderson",
"Prefix": "Mr.",
"Title": "Support Assistant",
"City": "Atlanta",
"State": "Georgia",
"Email": "jamesa@dx-email.com",
"Skype": "jamesa_DX_skype",
"Mobile_Phone": "(323) 555-4702",
"Birth_Date": "1987-01-29",
"Hire_Date": "2012-10-18"
}, {
"ID": 19,
"Head_ID": 9,
"Full_Name": "Antony Remmen",
"Prefix": "Mr.",
"Title": "Support Assistant",
"City": "Boise",
"State": "Idaho",
"Email": "anthonyr@dx-email.com",
"Skype": "anthonyr_DX_skype",
"Mobile_Phone": "(310) 555-6625",
"Birth_Date": "1986-02-19",
"Hire_Date": "2013-01-19"
}, {
"ID": 20,
"Head_ID": 8,
"Full_Name": "Olivia Peyton",
"Prefix": "Mrs.",
"Title": "Sales Assistant",
"City": "Atlanta",
"State": "Georgia",
"Email": "oliviap@dx-email.com",
"Skype": "oliviap_DX_skype",
"Mobile_Phone": "(310) 555-2728",
"Birth_Date": "1981-06-03",
"Hire_Date": "2012-05-14"
}, {
"ID": 21,
"Head_ID": 6,
"Full_Name": "Taylor Riley",
"Prefix": "Mr.",
"Title": "Network Admin",
"City": "San Jose",
"State": "California",
"Email": "taylorr@dx-email.com",
"Skype": "taylorr_DX_skype",
"Mobile_Phone": "(310) 555-7276",
"Birth_Date": "1982-08-14",
"Hire_Date": "2012-04-14"
}, {
"ID": 22,
"Head_ID": 6,
"Full_Name": "Amelia Harper",
"Prefix": "Mrs.",
"Title": "Network Admin",
"City": "Los Angeles",
"State": "California",
"Email": "ameliah@dx-email.com",
"Skype": "ameliah_DX_skype",
"Mobile_Phone": "(213) 555-4276",
"Birth_Date": "1983-11-19",
"Hire_Date": "2011-02-10"
}, {
"ID": 23,
"Head_ID": 6,
"Full_Name": "Wally Hobbs",
"Prefix": "Mr.",
"Title": "Programmer",
"City": "Chatsworth",
"State": "California",
"Email": "wallyh@dx-email.com",
"Skype": "wallyh_DX_skype",
"Mobile_Phone": "(818) 555-8872",
"Birth_Date": "1984-12-24",
"Hire_Date": "2011-02-17"
}, {
"ID": 24,
"Head_ID": 6,
"Full_Name": "Brad Jameson",
"Prefix": "Mr.",
"Title": "Programmer",
"City": "San Fernando",
"State": "California",
"Email": "bradleyj@dx-email.com",
"Skype": "bradleyj_DX_skype",
"Mobile_Phone": "(818) 555-4646",
"Birth_Date": "1988-10-12",
"Hire_Date": "2011-03-02"
}, {
"ID": 25,
"Head_ID": 6,
"Full_Name": "Karen Goodson",
"Prefix": "Miss",
"Title": "Programmer",
"City": "South Pasadena",
"State": "California",
"Email": "kareng@dx-email.com",
"Skype": "kareng_DX_skype",
"Mobile_Phone": "(626) 555-0908",
"Birth_Date": "1987-04-26",
"Hire_Date": "2011-03-14"
}, {
"ID": 26,
"Head_ID": 5,
"Full_Name": "Marcus Orbison",
"Prefix": "Mr.",
"Title": "Travel Coordinator",
"City": "Los Angeles",
"State": "California",
"Email": "marcuso@dx-email.com",
"Skype": "marcuso_DX_skype",
"Mobile_Phone": "(213) 555-7098",
"Birth_Date": "1982-03-02",
"Hire_Date": "2005-05-19"
}, {
"ID": 27,
"Head_ID": 5,
"Full_Name": "Sandy Bright",
"Prefix": "Ms.",
"Title": "Benefits Coordinator",
"City": "Denver",
"State": "Colorado",
"Email": "sandrab@dx-email.com",
"Skype": "sandrab_DX_skype",
"Mobile_Phone": "(818) 555-0524",
"Birth_Date": "1983-09-11",
"Hire_Date": "2005-06-04"
}, {
"ID": 28,
"Head_ID": 6,
"Full_Name": "Morgan Kennedy",
"Prefix": "Mrs.",
"Title": "Graphic Designer",
"City": "San Fernando Valley",
"State": "California",
"Email": "morgank@dx-email.com",
"Skype": "morgank_DX_skype",
"Mobile_Phone": "(818) 555-8238",
"Birth_Date": "1984-07-17",
"Hire_Date": "2012-01-11"
}, {
"ID": 29,
"Head_ID": 28,
"Full_Name": "Violet Bailey",
"Prefix": "Ms.",
"Title": "Jr Graphic Designer",
"City": "La Canada",
"State": "California",
"Email": "violetb@dx-email.com",
"Skype": "violetb_DX_skype",
"Mobile_Phone": "(818) 555-2478",
"Birth_Date": "1985-06-10",
"Hire_Date": "2012-01-19"
}, {
"ID": 30,
"Head_ID": 5,
"Full_Name": "Ken Samuelson",
"Prefix": "Dr.",
"Title": "Ombudsman",
"City": "St. Louis",
"State": "Missouri",
"Email": "kents@dx-email.com",
"Skype": "kents_DX_skype",
"Mobile_Phone": "(562) 555-9282",
"Birth_Date": "1972-09-11",
"Hire_Date": "2009-04-22"
}];
@Injectable()
export class Service {
getEmployees(): Employee[] {
return employees;
}
}
// 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/
window.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@2.3.1/tslib.js',
'rxjs': 'npm:rxjs@6.4.0',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@21.1.6/cjs',
'devextreme/bundles/dx.all': 'npm:devextreme@21.1.6/bundles/dx.all.js',
'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.4.2/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.1.32',
'devexpress-gantt': 'npm:devexpress-gantt@3.0.14',
'devextreme-angular': 'npm:devextreme-angular@21.1.6',
'@devextreme/vdom': 'npm:@devextreme/vdom@1.2.2',
'inferno': 'npm:inferno@7.4.10/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat@7.4.10/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.10/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.10/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.10/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class@7.4.10/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras@7.4.10/dist/inferno-extras.min.js'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'@devextreme/vdom': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
packageConfigPaths: [
"npm:@devextreme/*/package.json",
"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",
]
};
System.config(window.config);
<!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/21.1.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.6/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.10.3/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>