html+asp.net上传文件

　　type="file" 的name以及id一定要写，并且名字相同

http://niunan.iteye.com/blog/479605

     <form  action="ImportIPOHub.aspx"  method="post"  enctype="multipart/form-data">
        <input type="file" >/>    </form

submit方式上传文件
     $("#btnUpload").bind("click", function () {

                document.getElementById('form1').submit();
                
            });

xmlhttp上传文件

http://www.cnblogs.com/gxwang/p/4883902.html

$("#btnUpload").bind("click", function () {

var fileupload = document.getElementById('fileBrowe').files;
                var formdata = new FormData();
                formdata.append('fileBrowe', fileupload[0]);
                var xmlHttp = new XMLHttpRequest();
                xmlHttp.open("post", 'ImportIPOHub.aspx');
                xmlHttp.onreadystatechange = function () {
                    if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
                        alert('上传成功');
                    }
                }
                xmlHttp.send(formdata);

  });

c#后台代码

            string tempFile = Request.PhysicalApplicationPath;

            HttpPostedFile uploadFile = HttpContext.Current.Request.Files["fileBrowe"];
            if (uploadFile != null)
            {
                string foldpath = string.Format("{0}{1}", tempFile, "Upload\\");
                string path = foldpath + Guid.NewGuid().ToString() + uploadFile.FileName;

                if (uploadFile.ContentLength > 0)
                {
                    if (!System.IO.Directory.Exists(foldpath))
                        System.IO.Directory.CreateDirectory(foldpath);

                    uploadFile.SaveAs(path);
                }
            }

html5断点续传上传文件库

https://github.com/23/resumable.js

http://www.cnblogs.com/zhwl/p/3580776.html