无法使用排序库ng2-dnd对几个不同的列表进行排序

时间:2016-07-27 09:07:29

标签: javascript html5 typescript angular angular2-routing

我正在使用一些不错的simple drag-and-drop library from github,并且我有一个带有3个不同按钮的视图,每个按钮在同一个地方点击时都会显示一个列表,但不是在同一时间。

由于某种原因,只有第一个列表可以排序,但另外2个不是...我可以移动对象,但它们不可丢弃,所以我不能改变顺序。

这是我的HTML:

<div>
  <!-- list 1 button -->
  <button md-button
          (click)="showFirstList()"
          class="md-primary">List 1
  </button>

  <!-- list 2 button -->
  <button md-button
          (click)="showSecondList()"
          class="md-primary">List 2

  </button>

  <!-- list 3 button -->
  <button md-button
          (click)="ThirdList()"
          class="md-primary">List 3

  </button>
</div>


        <md-content>

          <div *ngIf="showingListOne">
            <div dnd-sortable-container [dropZones]="['zone-one']" [sortableData]="listOneToDisplay | async">
              <div class="list-bg" *ngFor="#item of listOneToDisplay | async; #i = index" dnd-sortable [sortableIndex]="i">
                ID: {{item.id}} <p></p> name: {{item.name}}
              </div>
            </div><br><br>
          </div>


          <div *ngIf="showingListTwo">
            <div dnd-sortable-container [dropZones]="['zone-two']" [sortableData]="listTwoToDisplay | async">
              <div class="list-bg" *ngFor="#item of listTwoToDisplay | async; #i = index" dnd-sortable [sortableIndex]="i">
                ID: {{item.id}} <p></p> age: {{item.age}}
              </div>
            </div>
          </div>


          <div *ngIf="showingListThree">
            <div dnd-sortable-container [dropZones]="['zone-three']"  [sortableData]="listThreeToDisplay | async">
              <div class="list-bg" *ngFor="#item of listThreeToDisplay | async; #i = index" dnd-sortable [sortableIndex]="i">
                ID: {{item.id}} <p></p> age: {{item.age}}
              </div>
            </div>
    </div>
          </div>

        </md-content>

这是我的sorting-lists.component.ts:

@Component({
  selector: 'sorting-lists',
  styles: [require('./sorting-lists.css')],
  directives: [DND_DIRECTIVES],
  providers: [DND_PROVIDERS],
  template: require('./sorting-lists.component.html')
})

@Injectable()
export class MyCmp implements OnInit {

  listOneToDisplay  = this._myService.getFirstListData();
  listTwoToDisplay = this._myService.getSecondListData();
  listThreeToDisplay = this._myService.getThirdListData();

  showingListOne = false;
  showingListTwo = false;
  showingListThree = false;

  constructor(private _myService: MyService) {
  };


  public showFirstList(): void {
    this.showingListOne = true;
    this.showingListTwo = false;
    this.showingListThree = false;
  }

  public showSecondList(): void {
    this.showingListTwo = true;
    this.showingListOne = false;
    this.showingListThree = false;
  }

  public showThirdList(): void {
    this.showingListThree = true;
    this.showingListTwo = false;
    this.showingListOne = false;
  }

}

如果有人可以帮我弄清楚为什么只有第一个可以排序它会被祝福!!

谢谢:)

3 个答案:

答案 0 :(得分:4)

EDIT2 :(根据您的新版问题):

尝试在应用程序的引导程序中提供DND_PROVIDERS,而不是在组件中提供它。有关详细信息,请查看here

bootstrap(AppComponent, [
    DND_PROVIDERS // It is required to have 1 unique instance of your service
]);


您还可以使用ng2-dragula,这是dragula的官方Angular2包装。

通过npm安装

编辑:要使用带有 angular 2.0.0-beta.15 的ng2-dragular,请将带有github链接的ng2-dragula包添加到上次提交之前在package.json

中切换到RC.1

ng2-dragula": "git://github.com/valor-software/ng2-dragula.git#0cdcd52b1a486609ed4b4a43465b1dac2bb1b007

> npm install

<强>用法

将DragulaService添加到组件中,并将Dragula添加到组件指令中。

@Component({
  selector: 'sample',
  directives: [Dragula],
  viewProviders: [DragulaService],
  template:`
  <div>
    <div class='wrapper'>
      <div class='container' [dragula]='"first-bag"'>
        <div>You can move these elements between these two containers</div>
        <div>Moving them anywhere else isn't quite possible</div>
        <div>There's also the possibility of moving elements around in the same container, changing their position</div>
      </div>
      <div class='container' [dragula]='"first-bag"'>
        <div>This is the default use case. You only need to specify the containers you want to use</div>
        <div>More interactive use cases lie ahead</div>
        <div>Make sure to check out the <a href='https://github.com/bevacqua/dragula#readme'>documentation on GitHub!</a></div>
      </div>
    </div>
  </div>
  `
})
class Sample {}

答案 1 :(得分:2)

我使用ng2-dragula(https://github.com/valor-software/ng2-dragula)或primeng(http://www.primefaces.org/primeng)。

如果我理解你的样本,ng2-dragula应该可以胜任。

不确定这些是否适用于您需要使用的Angular2版本。

我希望这会有所帮助

答案 2 :(得分:1)

您可以使用ng2-dnd

ng2-dnd

我在angular2 beta中使用它,它非常容易使用。

希望这有帮助。