Is it possible to programmatically trigger the OnChangeFile event in Angular without relying on a button click?

Is there a way to automatically trigger file upload to AWS without having to click the "choose file" button?

Here is the code in my .html file:

<div class="content">
  <input (change)="onChangeFile($event)" type="file" />
</div>

And here is the code in my .ts file:

 async onChangeFile(event: any) {
    console.log(event.target.files[0]);
    this.fileSelected = event.target.files[0];
    console.log(environment);
    console.log('Uploaded');
    await this.S3CustomClient.uploadFile(
     .uploadFile(this.fileSelected, this.fileSelected.type, undefined, this.fileSelected.name, "private")
      .then((data: UploadResponse) => console.log(data))
      .catch((err: any) => console.error(err))

Answer №1

The display of a file chooser dialog is restricted for security purposes and can only be triggered by user interaction, such as a click event. Unfortunately, the action you desire cannot be achieved.

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