Angular TreeList - toolbar
items[]
The toolbar can contain the following elements as items:
Predefined controls
Predefined controls appear on the toolbar depending on whether a specific TreeList feature is enabled. The following table illustrates the dependency:Control Name Image Prerequisites addRowButton editing.allowAdding is true applyFilterButton filterRow.visible is true and filterRow.applyFilter is set to "onClick" columnChooserButton columnChooser.enabled is true revertButton editing.mode is set to "batch" saveButton editing.mode is set to "batch" and editing.allowUpdating is true searchPanel searchPanel.visible is true If you need to customize a predefined control, add an object to the items[] array. This object must contain the control's name and properties that you want to customize. If a control does not need customization, simply include its name in the toolbar.items[] array.
The example below customizes the Column Chooser button, adds an Add Row button, and enables the corresponding TreeList features:
app.component.htmlapp.module.ts- <dx-tree-list ... >
- <dxo-editing [allowAdding]="true"></dxo-editing>
- <dxo-column-chooser [enabled]="true"></dxo-column-chooser>
- <dxo-toolbar>
- <dxi-item name="addRowButton"></dxi-item>
- <dxi-item
- name="columnChooserButton"
- locateInMenu="auto"
- location="after">
- </dxi-item>
- </dxo-toolbar>
- </dx-tree-list>
- import { BrowserModule } from '@angular/platform-browser';
- import { NgModule } from '@angular/core';
- import { AppComponent } from './app.component';
- import { DxTreeListModule } from 'devextreme-angular';
- @NgModule({
- declarations: [
- AppComponent
- ],
- imports: [
- BrowserModule,
- DxTreeListModule,
- ],
- providers: [ ],
- bootstrap: [AppComponent]
- })
- export class AppModule { }
IMPORTANTThe TreeList does not display controls missing from the items[] array. Ensure that this array includes controls for all enabled features.DevExtreme components
You can use DevExtreme components as toolbar items. Declare a
dxi-item
element to add a supported component:app.component.htmlapp.module.ts- <dx-tree-list ... >
- <dxo-toolbar>
- <dxi-item>
- <dx-select-box>
- <!-- SelectBox properties are specified here -->
- </dx-select-box>
- </dxi-item>
- </dxo-toolbar>
- </dx-tree-list>
- import { BrowserModule } from '@angular/platform-browser';
- import { NgModule } from '@angular/core';
- import { AppComponent } from './app.component';
- import { DxTreeListModule, DxSelectBoxModule } from 'devextreme-angular';
- @NgModule({
- declarations: [
- AppComponent
- ],
- imports: [
- BrowserModule,
- DxTreeListModule,
- DxSelectBoxModule,
- ],
- providers: [ ],
- bootstrap: [AppComponent]
- })
- export class AppModule { }
Custom controls
To use a custom control, specify a template for it.
If you have technical questions, please create a support ticket in the DevExpress Support Center.