I want to detect a usb device via asp.net C# web page

Question

I am trying to use thumb drive for my asp.net project. I got ask a question beforehand but this is a new question that I will like to know.

Firstly, I will like to know how to detect USB drives. Example: It will print something like USB detected.

Next, to read file from the USB.

Answer 1

Since the USB drive is on the client's PC, you need to use pure client based code to do this. You need javascript since you are running this in a web context. I haven't used this before, but this may be what you are looking for:

https://developer.chrome.com/apps/app_usb

chrome.usb.getDevices(enumerateDevicesOptions, callback);


function onDeviceFound(devices) {
this.devices=devices;
if (devices) {
  if (devices.length > 0) {
    console.log("Device(s) found: "+devices.length);
  } else {
    console.log("Device could not be found");
  }
} else {
  console.log("Permission denied.");
}
}

chrome.usb.getDevices({"vendorId": vendorId, "productId": productId}, onDeviceFound);