Multiple Drag and Drop in EJ 1 Angular TreeView

3 Dec 2017 / 5 minutes to read

TreeView supports to drag and drop multiple nodes by specifying allowMultiSelection as true along with allowDragAndDrop as true. It allows you to drag and drop multiple nodes in TreeView.

html

<ej-treeview id="dragdrop" [fields]='field' [allowMultiSelection]='allowMultiSelection' 
 [allowDragAndDrop]='allowDragAndDrop'></ej-treeview>

html

<script>

import { Component, Inject } from '@angular/core';

@Component({
    selector: 'control-content',
    templateUrl: 'app/components/treeview/dragDrop.component.html'
})
export class DragdropTreeViewComponent {

   public hierarchicalData: Object[] = [
        {
            id: 1, name: 'ASP.NET MVC Team', expanded: true,
            child: [
                { id: 2, parentId: 1, name: 'Smith', isSelected: true },
                { id: 3, parentId: 1, name: 'Johnson', isSelected: true },
                { id: 4, parentId: 1, name: 'Anderson' },
            ]
        },
        {
            id: 5, name: 'Windows Team',
            child: [
                { id: 6, parentId: 5, name: 'Clark' },
                { id: 7, parentId: 5, name: 'Wright' },
                { id: 8, parentId: 5, name: 'Lopez' },
            ]
        },
        {
            id: 9, name: 'Web Team',
            child: [
                { id: 11, parentId: 9, name: 'Joshua' },
                { id: 12, parentId: 9, name: 'Matthew' },
                { id: 13, parentId: 9, name: 'David' },
            ]
        },
        {
            id: 14, name: 'Build Team',
            child: [
                { id: 15, parentId: 14, name: 'Ryan' },
                { id: 16, parentId: 14, name: 'Justin' },
                { id: 17, parentId: 14, name: 'Robert' },
            ]
        },
        {
            id: 18, name: 'WPF Team',
            child: [
                { id: 19, parentId: 18, name: 'Brown' },
                { id: 20, parentId: 18, name: 'Johnson' },
                { id: 21, parentId: 18, name: 'Miller' },
            ]
        }
    ];
    public field:Object ={ dataSource: this.hierarchicalData, id: 'id', text: 'name', child: 'child', selected: 'isSelected' };
    public allowMultiSelection:boolean = true;
    public allowDragAndDrop:boolean = true;
}

</script>

For more details about multiple drag and drop in TreeView, refer the sample here.