我想用javascript将数据和文件发送到控制器(但如何发送)(Mvc asp.net)

<form id="myForm" action="/Controller/Action" method="post" enctype="multipart/form-data">
  <input type="text" name="data" id="data" />
  <input type="file" name="file" id="file" />
  <input type="submit" value="Submit" />
</form>

document.getElementById("myForm").addEventListener("submit", function(e) {
  e.preventDefault(); // 阻止表单默认提交行为

  var formData = new FormData();
  formData.append("data", document.getElementById("data").value);
  formData.append("file", document.getElementById("file").files[0]);

  var xhr = new XMLHttpRequest();
  xhr.open("POST", "/Controller/Action", true);
  xhr.onreadystatechange = function() {
    if (xhr.readyState === 4 && xhr.status === 200) {
      // 请求成功处理逻辑
      console.log(xhr.responseText);
    }
  };
  xhr.send(formData);
});