如何使用 window.open() 下载多个文件？

Question

I am trying to download multiple files at once. At first I use window.location = url but now it doesn't seem to work.

I've changed it to window.open(url, "_blank") and it only downloads the first one:

window.open("/host/Controller/DownloadDasFiles?paramId=204");
window.open("/host/Controller/DownloadDasFiles?paramId=205");
window.open("/host/Controller/DownloadDasFiles?paramId=206");

public FileResult DownloadDasFiles(int paramId)
{
  var dasControl = UnityConfig.container.Resolve<IDasControlService>();
  var filename = dasControl.GetDasFileToDownload(paramId);
  return File(filename, "application/octet-stream", Path.GetFileName(filename));
}

In my real case I do this after AJAX success in a javascript loop, but this code should work, shouldn't it?

Answer 1

This may help. It will open all 3 windows at same time.

let test = [204, 205, 206];
let downLoadFileBaseUrl = '/host/Controller/DownloadDasFiles?paramId='
test.forEach(element => {
  let file = `${downLoadFileBaseUrl}+${element}`;
  window.open(file, '_blank', 'File :' + element + ',scrollbars=1,menubar=0,resizable=1,width=850,height=500');
});