Validation for minimum size file upload in PrimeNg-CodePudding

I am using PrimeNG uploader for upload files. I want to do validation if the file size is less than 1kb. There is no properties for min File size.

HTML

<p-fileUpload multiple="true" mode="advanced" name="parseFileData[]" #fileInput
            accept=".kmz" maxFileSize="12582912" chooseLabel="Browse File"></p-fileUpload>

CodePudding user response：

Please find the approach, this might help you to achieve minimum file size upload validation using p-fileUpload:

sample.component.html

<p-fileUpload customUpload="true" (uploadHandler)="onFileUpload($event)"></p-fileUpload>

You can validate the file size in the component when the file gets uploaded like below:

sample.component.ts

onFileUpload(event) {
    let fileSize = event.files[0].size; // you will get the uploaded file size
    if (fileSize > 1000) {
      console.log("File size is Greater than 1KB");
      // logic goes here for file uploaded greater than 1KB
    }
}

CodePudding user response：

(onBeforeUpload) -> event.formData: FormData object. -> Callback to invoke before file upload is initialized. The doc says like this. You can check the file size from the FormData, before uploading it.