// :auto-upload="false" 是否自动上传, 默认true <el-upload v-model:file-list="fileList[editableTabsValue]" drag :action="uploadFileUrl" :headers="headers" multiple :before-upload="handleBeforUpload" :on-preview="handlePreview" :on-remove="handleRemove" :before-remove="beforeRemove" :limit="...
在Vue3中,onBeforeUpload方法是一个钩子函数,用于在文件上传之前进行自定义处理。你可以在这个方法中校验文件类型、大小等,或者执行其他需要在上传前完成的逻辑。如果返回false,则文件上传会被阻止;如果返回true或者一个Promise对象,文件会继续上传。 1. 解释onBeforeUpload方法在Vue3中的用途 onBeforeUpload方法主要用于...
40 <el-upload:before-update="handleBeforeUpdate" :http-request="uploadFile"> // 自定义上传组件样式 </el-upload> // 上传前的文件校验 function handleBeforeUpload(file: UploadRawFile) { const inType = /.(jpg|jpeg|png|JPG|PNG|JPEG)$/gi.test(file.name); if (!inType) { ElMessage.warning...
// 文件上传之时(文件不会上传成功,在触发下一步操作前截取文件信息) beforeUpload(file) { if (file) { // 添加-跳跃增 => 只能添加到第一位,后面的全删掉 if (this.index === 0 && this.iNotUpload !== 0 && !this.addUpload) { this.fileUploadLength.splice(this.iNotUpload, this.fileUploa...
uploadBanner.value.clearFiles(); }; 2. 使用action上传 a. html部分(上传多个文件) <el-upload action="uploadUrl" list-type="picture-card" v-model:file-list="formData.fileList" :limit="9" accept="image/*" :before-upload="beforeUpload" :on-success="handleSuccess"> ...
function handleBeforeUpload(file: UploadRawFile) { if (file.size > 2 * 1048 * 1048) { ElMessage.warning('上传图片不能大于2M'); return false; } return true; } /** * 图片预览 */ const handlePreview: UploadProps['onPreview'] = uploadFile => { ...
<el-upload :before-upload="beforeFileUpload"...> ...</el-upload> 读取粘贴板内容并传给el-upload ...const uploadRef = ref<InstanceType<typeof ElUpload>>()const handlePaste=(event)=>{ const files = event.clipboardData.files[0];if (!files) { console.info("请复制图片再粘贴！");return...
<el-upload action="#" :http-request="() => { }" :before-upload="beforeUpload":show-file-list="false"> <el-button>选择</el-button> </el-upload> </el-col> <el-col :span="4"> <el-button :icon="Plus" @click="changeScale(1)"></el-button> ...
我们需要在项目中引入Vue3和Element UI,然后使用el-upload组件来实现文件上传功能。例如: ```javascript <template> <el-upload class="upload-demo" action="xxx" :on-preview="handlePreview" :on-remove="handleRemove" :before-remove="beforeRemove" multiple :limit="3" :on-exceed="handleExceed" :file...
}// 上传前loading加载functionhandleBeforeUpload(file) {try{letisImg =false;if(props.fileType.length) {letfileExtension ="";if(file.name.lastIndexOf(".") > -1) { fileExtension = file.name.slice(file.name.lastIndexOf(".") +1);