naive-ui/demo/documentation/components/upload/enUS/controlled.md

# Controlled File List
Example is only a joke.
```html
<div>
  <n-upload
    action="http://www.mocky.io/v2/5e4bafc63100007100d8b70f"
    :file-list="fileList"
    @change="handleUploadChange"
    :on-remove="handleRemove"
  >
    <n-button>Upload File</n-button>
  </n-upload>
</div>
```
```js
export default {
  data () {
    return {
      fileList: [
        {
          id: 'url-test',
          name: 'URL Test',
          url: 'http://www.mocky.io/v2/5e4bafc63100007100d8b70f',
          status: 'finished'
        },
        {
          id: 'text-message',
          name: 'Your text messages',
          status: 'error',
        },
        {
          id: 'notification',
          name: 'You notifications',
          status: 'finished'
        },
        {
          id: 'contact',
          name: 'You contact info',
          status: 'finished'
        }
      ]
    }
  },
  methods: {
    handleUploadChange ({
      fileList
    }) {
      this.fileList = fileList
    },
    handleRemove (file, files) {
      if (file.id === 'text-message') {
        this.$NMessage.info('Oops... It\'s now uploaded. Okay, delete it.')
      } else if (file.id === 'notification') {
        this.$NMessage.error('No, this is useful for us. Removal not allowed.')
        return false
      } else if (file.id === 'contact') {
        const message = this.$NMessage.loading('Don\' know whether it is useful for us, let me ask the server', {
          duration: 4000
        })
        return new Promise(resolve => {
          setTimeout(() => {
            this.$NMessage.error('Oh no, they said you can\'t delete it too!')
            resolve(false)
          }, 4000)
        })
      }
    }
  }
}
```