element-plus/docs/examples/upload/limit-cover.vue

42 lines
1.0 KiB
Vue

<template>
<el-upload
ref="upload"
class="upload-demo"
action="https://run.mocky.io/v3/9d059bf9-4660-45f2-925d-ce80ad6c4d15"
:limit="1"
:on-exceed="handleExceed"
:auto-upload="false"
>
<template #trigger>
<el-button type="primary">select file</el-button>
</template>
<el-button class="ml-3" type="success" @click="submitUpload">
upload to server
</el-button>
<template #tip>
<div class="el-upload__tip text-red">
limit 1 file, new file will cover the old file
</div>
</template>
</el-upload>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { genFileId } from 'element-plus'
import type { UploadInstance, UploadProps, UploadRawFile } from 'element-plus'
const upload = ref<UploadInstance>()
const handleExceed: UploadProps['onExceed'] = (files) => {
upload.value!.clearFiles()
const file = files[0] as UploadRawFile
file.uid = genFileId()
upload.value!.handleStart(file)
}
const submitUpload = () => {
upload.value!.submit()
}
</script>