file upload using knockout js

Question

File upload not working using knockout js. I have tried with below code but not working. Please mention where I am doing wrong.

This is my file control and button. I am

Answer 1

function ()
{
    var files = $("#FileName").get(0).files;
    var data = new FormData();
    for (var x = 0; x < files.length; x++) {
        data.append("file" + x, files[x]);
    }

    $.ajax({
        type: "POST",
        url: '/api/Controller' + '/?id=' + id ),
        contentType: false,
        processData: false,
        data: data,
        success: function (result) {},
        error: function (xhr, status, p3, p4) {}
    });
}