ng2-dragula with a virtual scroll

问题

I am trying to implement ngx-virtual-scroll and ng2-dragula together

here is my current Stackblitz UPDATED : Stackblitz

The problem is the following :

<virtual-scroller #scroll2 [id]="myGroupId" [dragula]="myGroupId" [(dragulaModel)]="myList.list2" [items]="myList.list2" class="virtual-scroller">
    <div class="virtual-scroller-element"  *ngFor="let card of myList.list2; let i = index ">{{myList.list2[i]}}</div>
</virtual-scroller>

for Dragula to work, there must be no HTML in between the group declaration [dragula]="myGroupId" and the items to drag.

But almost any virtual scroller lib, included this one, create item inside a div. that is auto generate by the package. And therefor, my full div will be drag gable.

I would like to know if you have any tweaks to make it work ?

回答1:

I haven't used it before but this seems to do the trick (i don't know about the visuals, i guess it can be tuned, but functionally it works). please test:

<div class="virtual-scroller-container">
  <div  class="virtual-scroller-column">
    <virtual-scroller #scroll1 [id]="myGroupId"  [items]="myList.list1" class="virtual-scroller">
       <div class='container' [dragula]="myGroupId" [(dragulaModel)]="myList.list1">
        <div class="virtual-scroller-element" *ngFor="let card of myList.list1; let i = index ">{{myList.list1[i]}}</div>
      </div>
    </virtual-scroller>
  </div> 
  <div  class="virtual-scroller-column">
    <virtual-scroller #scroll2  [id]="myGroupId" class="virtual-scroller">
        <div class='container' [dragula]="myGroupId" [(dragulaModel)]="myList.list2">
            <div class="virtual-scroller-element"   *ngFor="let card of myList.list2; let i = index ">{{myList.list2[i]}}</div>
        </div>
    </virtual-scroller>
  </div>
  <div  class="virtual-scroller-column">
    <virtual-scroller #scroll3 [id]="myGroupId"  [items]="myList.list3" class="virtual-scroller">
      <div class='container' [dragula]="myGroupId" [(dragulaModel)]="myList.list3">
        <div class="virtual-scroller-element"  *ngFor="let card of myList.list3; let i = index ">{{myList.list3[i]}}</div>
      </div>
    </virtual-scroller>
  </div>
</div>

来源：https://stackoverflow.com/questions/55016938/ng2-dragula-with-a-virtual-scroll

标签

angular

drag-and-drop

ng2-dragula

virtualscroll