alfresco-ng2-components/docs/process-services/task-attachment-list.component.md
Eugenio Romano 7d061b2c11
[ADF-1873] Remove all deprecated code from ADF (#4145)
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---
Title: Task Attachment List Component
Added: v2.0.0
Status: Active
Last reviewed: 2019-01-14
---
# [Task Attachment List Component](../../lib/process-services/attachment/task-attachment-list.component.ts "Defined in task-attachment-list.component.ts")
Displays documents attached to a specified task.
![task-attachment-list-sample](../docassets/images/task-attachment-list.png)
## Basic Usage
```html
<adf-task-attachment-list
[taskId]="YOUR_TASK_ID"
(attachmentClick)="YOUR_HANDLER">
</adf-task-attachment-list>
```
### [Transclusions](../user-guide/transclusion.md)
Any content inside the `<adf-task-attachment-list>` element will be displayed
when the list is empty:
```html
<adf-task-attachment-list ...>
<div><!-- Custom empty list message goes here --></div>
</adf-task-attachment-list>
```
![custom-no-content-drag-drop-template-sample](../docassets/images/custom-no-content-drag-drop-template.png)
A default "no content" template is displayed if you don't supply one to override it:
![default-no-content-template-sample](../docassets/images/default-no-content-template.png)
## Class members
### Properties
| Name | Type | Default value | Description |
| ---- | ---- | ------------- | ----------- |
| disabled | `boolean` | false | Disable/Enable read only mode for attachement list. |
| taskId | `string` | | (**required**) The ID of the task to display. |
### Events
| Name | Type | Description |
| ---- | ---- | ----------- |
| attachmentClick | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<Object>` | Emitted when the attachment is double-clicked or a view option is selected from the context menu by the user from within the component. Returns a [Blob](https://developer.mozilla.org/en-US/docs/Web/API/Blob) representing the clicked object. |
| error | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<any>` | Emitted when an error occurs while fetching the attachments. |
| success | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<Object>` | Emitted when the attachment list has fetched all the attachments. Returns a list of attachments. |
## Details
### How to Add Drag and Drop Functionality
You can wrap the component with an [Upload Drag Area component](../content-services/upload-drag-area.component.md)
to enable the user to upload attachments for empty lists. When you do this, you can also pass
a custom _no content template_ as shown below. The component invites the user to drag files to
upload whenever the list is empty.
<!-- {% raw %} -->
```html
<adf-upload-drag-area
[rootFolderId]="YOUR_TASK_ID"
[showNotificationBar]="BOOLEAN">
<adf-task-attachment-list
[taskId]="YOUR_TASK_ID"
(attachmentClick)="YOUR_HANDLER">
<adf-empty-list>
<div adf-empty-list-header>{{This List is empty}}</div>
<div adf-empty-list-body>{{Drag and drop to upload}}</div>
<div adf-empty-list-footer>
<img [src]="Your custom image URL"></div>
</adf-empty-list>
</adf-task-attachment-list>
</adf-upload-drag-area>
```
<!-- {% endraw %} -->
```ts
import { UploadService } from '@alfresco/adf-core';
import { TaskUploadService } from '@alfresco/adf-process-services';
```
Make sure you override the [`UploadService`](../core/upload.service.md) with the [`TaskUploadService`](../../lib/process-services/task-list/services/task-upload.service.ts)
```ts
@Component({
selector: 'my-custom-task-attachment',
providers: [
{ provide: UploadService, useClass: TaskUploadService }
]
})
export class MyCustomTaskAttachmentComponent {
constructor() {}
}
```
## See also
- [Upload Drag Area Component](../content-services/upload-drag-area.component.md)