Angular 7 Drag and Drop - Dynamically Create Drop Zones

Question

Is there a way to dynamically create drop zones? I\'m having some troubles with ngFor and cdkDropList.

Here is my first list and draggable elements:

Answer 1

Source Link

Demo Link

For Dynamic Drag n Drop Lists, we can use ID instead of # Template variables

app.component.html

  

    
Week {{week.id}}

    

      
Week {{week.id}} {{weekItem}}
    
  

app.component.ts

import { Component } from '@angular/core';
import { CdkDragDrop, moveItemInArray, transferArrayItem } from '@angular/cdk/drag-drop';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {

  weeks = [];
  connectedTo = [];


  constructor() {
    this.weeks = [
      {
        id: 'week-1',
        weeklist: [
          "item 1",
          "item 2",
          "item 3",
          "item 4",
          "item 5"
        ]
      }, {
        id: 'week-2',
        weeklist: [
          "item 1",
          "item 2",
          "item 3",
          "item 4",
          "item 5"
        ]
      }, {
        id: 'week-3',
        weeklist: [
          "item 1",
          "item 2",
          "item 3",
          "item 4",
          "item 5"
        ]
      }, {
        id: 'week-4',
        weeklist: [
          "item 1",
          "item 2",
          "item 3",
          "item 4",
          "item 5"
        ]
      },
    ];
    for (let week of this.weeks) {
      this.connectedTo.push(week.id);
    };
  }

  drop(event: CdkDragDrop) {
    if (event.previousContainer === event.container) {
      moveItemInArray(event.container.data, event.previousIndex, event.currentIndex);
    } else {
      transferArrayItem(event.previousContainer.data,
        event.container.data,
        event.previousIndex,
        event.currentIndex);
    }
  }
}