MVC3 Upload上传及定义上传的大小

cshtml 页

@(Html.Telerik().Upload()
        .Name("attachments")
        .Multiple(true)
        .Async(async => async
        .Save("Save", "Home")
        .Remove("Remove", "Home")
        .AutoUpload(false)//是否自动上传
        )
        .ClientEvents(events => events
            .OnSelect("onSelect")
            .OnUpload("onUpload")
            .OnSuccess("onSuccess")
            .OnRemove("onRemove")
            .OnComplete("onComplete")
            ) 
   )

   <script type="text/javascript">
       function onUpload(e) {


       }

       function onSelect(e) {
        // Array with information about the uploaded files
        var files = e.files;

        if (files.length > 5) {
            alert("Too many files selected!");
            e.preventDefault();
        }
    }
       function onComplete(e) {
           // The upload is now idle
       }

           function onSuccess(e) {
        //$console.log("Success (" + e.operation + ") :: " + getFileInfo(e));
// $('#AttachmentGrid').data('tGrid').ajaxRequest();
     
    }
    function onRemove(e) {
        //$console.log("Remove :: " + getFileInfo(e));
    }

     </script>

UploadController

 public ActionResult Save(IEnumerable<HttpPostedFileBase> attachments)
        {
            // The Name of the Upload component is "attachments" 
            foreach (var file in attachments)
            {
                // Some browsers send file names with full path. We only care about the file name.
                var fileName = Path.GetFileName(file.FileName);
                var destinationPath = Path.Combine(Server.MapPath("~/Upload"), fileName);

                file.SaveAs(destinationPath);
            }

            // Return an empty string to signify success
            return Content("");
        }


        public ActionResult Remove(string[] fileNames)
        {
            foreach (var fullName in fileNames)
            {
                var fileName = Path.GetFileName(fullName);
                var physicalPath = Path.Combine(Server.MapPath("~/Upload"), fileName);

                // TODO: Verify user permissions

                if (System.IO.File.Exists(physicalPath))
                {
                    System.IO.File.Delete(physicalPath);
                }
            }

            // Return an empty string to signify success
            return Content("");
        }

web.config

<system.web>
    <!-- The request length is in kilobytes, execution timeout is in seconds  -->
    <httpRuntime maxRequestLength="100240" executionTimeout="500" />
</system.web>

  <system.webServer>
    <security>
      <requestFiltering>
        <!-- The content length is in bytes  -->
        <requestLimits maxAllowedContentLength="150485760"/>
      </requestFiltering>
    </security>
  </system.webServer>

分别在这两个节点加上以上代码 控制文件大小的关键