Question

我正在尝试使用https://material.angular.io/cdk/drag-drop/overview中的Angular Material CDK DragDrop模块

通过cdkDropListDropped事件，我可以防止拖放，但也不应将其拖动。如何告诉cdkDropList或每个cdkDrag元素禁用拖动？

<div class="list-group" id="orderlist" cdkDropList (cdkDropListDropped)="drop($event)">
                        <a class="list-group-item" 
                            [class.linked]="ord.linkedToPrevious" 
                            [class.selected]="ord.selected"
                            *ngFor="let ord of items" (click)="selectOrder(ord, $event)" cdkDrag>
                            <button class="btn btn-default btn-link linkeditem" [class.linked]="ord.linkedToPrevious" 
                                (click)="linkTechnology(ord, $event)" 
                                    [attr.disabled]="editing ? null : true">
                                <span class="glyphicon glyphicon-link"></span>
                            </button>
                            <h4>{{ord.technology.name}}</h4>
                        </a>
                    </div>

Answer 1

您可以将cdkDragHandle与“属性”绑定一起使用，并将“属性”与“类”“打开”或“关闭”。

<div class="example-handle" [class.your-css-class]="!editing" cdkDragHandle>
<svg width="24px" fill="currentColor" viewBox="0 0 24 24">
  <path d="M10 9h4V6h3l-5-5-5 5h3v3zm-1 1H6V7l-5 5 5 5v-3h3v-4zm14 2l-5-5v3h-3v4h3v3l5-5zm-9 3h-4v3H7l5 5 5-5h-3v-3z"></path>
  <path d="M0 0h24v24H0z" fill="none"></path>
</svg>

.your-css-class{
display: none
}

Answer 2

禁用拖动如果要禁用特定拖动项目的拖动，可以通过在cdkDrag项目上设置cdkDragDisabled输入来实现。此外，您可以使用cdkDropList上的cdkDropListDisabled输入或通过cdkDragHandle上的cdkDragHandleDisabled特定的句柄来禁用整个列表。

`infoName: Array(5)
0: {infoName: ""}
1: {infoName: ""}
2: {infoName: ""}
3: {infoName: ""}
4: {infoName: ""}`

Answer 3

If you want to disable dragging for a particular drag item, you can do so by setting the cdkDragDisabled input on a cdkDrag item.

<div cdkDropList class="list" (cdkDropListDropped)="drop($event)">
<div *ngFor="let item of dragedItems" cdkDrag 
[cdkDragDisabled]="item.disabled"> {{item.value}} </div>
</div>

Reference: https://github.com/angular/material2/blob/master/src/material-examples/cdk-drag-drop-disabled/cdk-drag-drop-disabled-example.html

https://github.com/angular/material2/pull/13722/commits/bd56a49dda5b5d2f0f0f2feac829afbe3752f5d5

CdkDragAndDrop如何防止拖动

3 个答案: