Angular CDK connecting multiple drop zones with cdkDropListConnectedTo

user_6816518 0
Viewed 14534

I am creating a simple board interface with swim lanes think Jira swimlane or trello boards

enter image description here The red lines shows current flow

The blue shows the flow which I would like to implement

I have three columns named "To Do", "In Progress" and "Done". Currently I can drag an item from To Do to In Progress, from In Progress to Done and from Done back to To do using cdkDropListConnectedTo.

What I want to know is that who can I move item from "Done" to "To Do" and "In Progress", similarly how to move item from "In Progress" to both "Done" and "To Do" and from "Done" to both "In Progress" and "To Do".

The first thing which I though of was passing multiple references to cdkDropListConnectedTo but that did not work. I will appreciate if anyone can point me right direction.

Thanks

Here is what I have written so far: https://stackblitz.com/edit/angular-mpedfr?file=src%2Fapp%2Fapp.component.html

angular-material2 angular-cdk angular-material angular typescript
4 Answers

You can now use a global container with cdkDropListGroup attribute, in which all child containers with cdkDropList attribute are linked together, no need to add all the [cdkDropListConnectedTo] stuff

<div cdkDropListGroup>
    <div cdkDropList>
        <div cdkDrag>Drag Me</div>
    </div>
    <div cdkDropList>
        <div cdkDrag>Drag Me Also</div>
    </div>
    ...
</div>
user_28761670
user_68165180

You can connect to multiple containers, like:

[cdkDropListConnectedTo]="[doneList,doneList1]"

user_100444140

Reference the drop zones in cdkDropListConnectedTo 

    <div class="board">
      <div class="lane lane-1" 
        cdkDropList 
        #todo="cdkDropList"
        [cdkDropListData]="toDoList"
        [cdkDropListConnectedTo]="[inProgress, done]"
        (cdkDropListDropped)="drop($event)"
        >
        <div class="heading todo">To Do</div>
        <div *ngFor="let item of toDoList" class="task"
           cdkDrag>{{item}}</div>
      </div>

      <div class="lane lane-2" 
        cdkDropList 
        #inProgress="cdkDropList"
        [cdkDropListData]="inProgressList"
        [cdkDropListConnectedTo]="[done,todo]"
        (cdkDropListDropped)="drop($event)"
        >
        <div class="heading doing">In Progress</div>
        <div *ngFor="let item of inProgressList" class="task" cdkDrag>{{item}}</div>
      </div>

      <div class="lane lane-2" 
        cdkDropList 
        #done="cdkDropList"
        [cdkDropListData]="doneList"
        [cdkDropListConnectedTo]="[todo,inProgress]"
        (cdkDropListDropped)="drop($event)"
        >
        <div class="heading done">Done</div>
        <div *ngFor="let item of doneList" class="task" cdkDrag>{{item}}</div>
      </div>
user_126746340
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