@helper AddFlashUploader(
                string uploadUrl,
                string queryParameters,
                string flashUrl,
                int totalUploadSizeLimit = 0,
                int uploadFileSizeLimit = 0,
                string fileTypes = "",
                string fileTypeDescription = "",
                string onUploadComplete = "")
    {      
        onUploadComplete = string.IsNullOrEmpty(onUploadComplete) ? "" : "completeFunction=" + onUploadComplete;
        queryParameters = Server.UrlEncode(queryParameters);        
        fileTypes = string.IsNullOrEmpty(fileTypes) ? "" : "&fileTypes=" + Server.UrlEncode(fileTypes);
        fileTypeDescription = string.IsNullOrEmpty(fileTypeDescription) ? "" : "&fileTypeDescription=" + Server.UrlEncode(fileTypeDescription);
        var totalUploadSizeLimitData = totalUploadSizeLimit > 0 ? "&totalUploadSize=" + totalUploadSizeLimit : "";
        var uploadFileSizeLimitData = uploadFileSizeLimit > 0 ? "&fileSizeLimit=" + uploadFileSizeLimit : "";
        var flashVars = onUploadComplete + fileTypes + fileTypeDescription + totalUploadSizeLimitData + uploadFileSizeLimitData + "&uploadPage=" + uploadUrl + "?" + queryParameters;
    <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0"
        width="575" height="375" id="fileUpload" align="middle">
        <param name="allowScriptAccess" value="sameDomain" />
        <param name="movie" value="@flashUrl" />
        <param name="quality" value="high" />
        <param name="wmode" value="transparent">
        <param name=FlashVars value="@flashVars">
        <embed src="@flashUrl"
               FlashVars="@flashVars" 
               quality="high" 
               wmode="transparent" 
               width="575" 
               height="375" 
               name="fileUpload" 
               align="middle" 
               allowScriptAccess="sameDomain" 
               type="application/x-shockwave-flash" 
               pluginspage="http://www.macromedia.com/go/getflashplayer" />
    </object>                        
}

@{
    ViewBag.Title = "Index";
    var uploadUrl = Url.Action("Uploader", "Home");
    var flashUrl = Url.Content("~/Content/FlashUpload/FlashFileUpload.swf");
}
<h2>
    Flash Uploader</h2>
<div style="background: #E0EBEF;">
    @FlashUploadHelper.AddFlashUploader(
                uploadUrl: uploadUrl,
                queryParameters: "User=Vahid&Id=تست",
                flashUrl: flashUrl,
                fileTypeDescription: "Images",
                fileTypes: "*.gif; *.png; *.jpg; *.jpeg",
                uploadFileSizeLimit: 0,
                totalUploadSizeLimit: 0,
                onUploadComplete: "alert('انجام شد');")
</div>

using System.Collections.Generic;
using System.IO;
using System.Web;
using System.Web.Mvc;

namespace MvcFlashUpload.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            return View();
        }

        public ActionResult Uploader(string User, string Id, IEnumerable<HttpPostedFileBase> FileData)
        {
            var queryParameter1 = User;
            var queryParameter2 = Id;
            // ...

            foreach (var file in FileData)
            {
                if (file.ContentLength > 0)
                {
                    var fileName = Path.GetFileName(file.FileName);
                    var path = Path.Combine(Server.MapPath("~/App_Data/Uploads"), fileName);
                    file.SaveAs(path);
                }
            }

            return Content(" ");
        }
    }
}

• امکان ایجاد progress bar و همچنین قابلیت لغو آپلود.
• Drag & Drop
• امکان paste کردن از Clipboard و قابلیت drag & drop از browser
• امکان resize کردن تصویر قبل از آپلود شدن
• امکان تغییر دادن orientation تصویر پیش از ارسال
• قابلیت resume و pause/play در آپلود
• امکان فیلتر کردن type، size و طول و عرض تصاویر
• قابلیت تبدیل به Flash shim در صورت عدم پشتیبانی html5 توسط مرورگر

نصب و پیاده سازی

bower install ng-file-upload-shim --save
bower install ng-file-upload --save

using System;
using System.Runtime.InteropServices;
using System.Reflection;

namespace Parsnet.Core
{

    public class MimeTypeDetector
    {
        [DllImport(@"urlmon.dll", CharSet = CharSet.Auto)]
        private extern static System.UInt32 FindMimeFromData(
            System.UInt32 pBC,
            [MarshalAs(UnmanagedType.LPStr)] System.String pwzUrl,
            [MarshalAs(UnmanagedType.LPArray)] byte[] pBuffer,
            System.UInt32 cbSize,
            [MarshalAs(UnmanagedType.LPStr)] System.String pwzMimeProposed,
            System.UInt32 dwMimeFlags,
            out System.UInt32 ppwzMimeOut,
            System.UInt32 dwReserverd
        );

        public string GetMimeType(byte[] content)
        {
            var result = "unknown/unknown";

            try
            {
                byte[] buffer = new byte[256];
                var length = (content.Length > 256) ? 256 : content.Length;
                Array.Copy(content, buffer, length);

                System.UInt32 mimetype;
                FindMimeFromData(0, null, buffer, 256, null, 0, out mimetype, 0);
                System.IntPtr mimeTypePtr = new IntPtr(mimetype);
                result = Marshal.PtrToStringUni(mimeTypePtr);
                Marshal.FreeCoTaskMem(mimeTypePtr);
            }
            catch (Exception ex)
            {
                //Log.WriteError(MethodInfo.GetCurrentMethod(), ex);
            }
            

            return result;
        }

    }
}

        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Upload(HttpPostedFileBase file)
        {
            //ابتدا با مکانیزم مورد نظر خود پسوند فایل را چک میکنیم اگر پسوند معتبری بود بعد محتوای فایل را چک میکنیم

            var data = new byte[256];
            file.InputStream.Read(data, 0, 256);
            var detector = new Parsnet.Core.MimeTypeDetector();
            var mimeType = detector.GetMimeType(data);
            if (CheckWhiteList(mimeType) == true)
            {
                file.SaveAs("yourpath");
            }
            else
            {
                ModelState.AddModelError("InvalidFileContent", "فایل بارگزاری شده مورد پذیرش نیست.");
            }
            return View();
        }

    [ServiceContract]
    public interface IScannerService
    {
        [OperationContract]
        [WebInvoke(Method = "GET",
           BodyStyle = WebMessageBodyStyle.Wrapped,
           RequestFormat = WebMessageFormat.Json,
           ResponseFormat = WebMessageFormat.Json,
           UriTemplate = "GetScan")]
        string GetScan();
    }

    public class ScannerService : IScannerService
    {
        public string GetScan()
        {
            // TODO Add code here
        }
    }

using WIA;

        public string GetScan()
        {
            var imgResult = String.Empty;
            var dialog = new CommonDialogClass();
            try
            {
                // نمایش فرم پیشفرض اسکنر
                var image = dialog.ShowAcquireImage(WiaDeviceType.ScannerDeviceType);
                
                // ذخیره تصویر در یک فایل موقت
                var filename = Path.GetTempFileName();
                image.SaveFile(filename);
                var img = Image.FromFile(filename);

                // img جهت ارسال سمت کاربر و نمایش در تگ Base64 تبدیل تصویر به 
                imgResult = ImageHelper.ImageToBase64(img, ImageFormat.Jpeg);
            }
            catch
            {
                // از آنجاییه که امکان نمایش خطا وجود ندارد در صورت بروز خطا رشته خالی 
                // بازگردانده می‌شود که به معنای نبود تصویر می‌باشد
            }

            return imgResult;
        }

        public static string ImageToBase64(Image image, System.Drawing.Imaging.ImageFormat format)
        {
            if (image != null)
            {
                using (MemoryStream ms = new MemoryStream())
                {
                    // Convert Image to byte[]
                    image.Save(ms, format);
                    byte[] imageBytes = ms.ToArray();

                    // Convert byte[] to Base64 String
                    string base64String = Convert.ToBase64String(imageBytes);
                    return base64String;
                }
            }
            return String.Empty;
        }

        private readonly Uri _baseAddress = new Uri("http://localhost:6019");
        private ServiceHost _host;

        private void Form1_Load(object sender, EventArgs e)
        {
            _host = new ServiceHost(typeof(WcfServiceScanner.ScannerService), _baseAddress);
            _host.Open();
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            _host.Close();
        }

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>

  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="BehaviourMetaData">
          <serviceMetadata httpGetEnabled="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <services>
      <service name="WcfServiceScanner.ScannerService"
               behaviorConfiguration="BehaviourMetaData">
        <endpoint address=""
                  binding="basicHttpBinding"
                  contract="WcfServiceScanner.IScannerService" />
      </service>
    </services>
  </system.serviceModel>

</configuration>

<a href="#" id="get-scan">Get Scan</a>
<img src="" id="img-scanned" />
<script>
    $("#get-scan").click(function () {
        var url = 'http://localhost:6019/';
        $.get(url, function (data) {
            $("#img-scanned").attr("src","data:image/Jpeg;base64,  "+ data.GetScanResult);
        });
    });
</script>

    public class CORSSupport : IDispatchMessageInspector
    {
        Dictionary<string, string> requiredHeaders;
        public CORSSupport(Dictionary<string, string> headers)
        {
            requiredHeaders = headers ?? new Dictionary<string, string>();
        }

        public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel, System.ServiceModel.InstanceContext instanceContext)
        {
            var httpRequest = request.Properties["httpRequest"] as HttpRequestMessageProperty;
            if (httpRequest.Method.ToLower() == "options")
                instanceContext.Abort();
            return httpRequest;
        }

        public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
        {
            var httpResponse = reply.Properties["httpResponse"] as HttpResponseMessageProperty;
            var httpRequest = correlationState as HttpRequestMessageProperty;

            foreach (var item in requiredHeaders)
            {
                httpResponse.Headers.Add(item.Key, item.Value);
            }
            var origin = httpRequest.Headers["origin"];
            if (origin != null)
                httpResponse.Headers.Add("Access-Control-Allow-Origin", origin);

            var method = httpRequest.Method;
            if (method.ToLower() == "options")
                httpResponse.StatusCode = System.Net.HttpStatusCode.NoContent;

        }
    }

    // Simply apply this attribute to a DataService-derived class to get
    // CORS support in that service
    [AttributeUsage(AttributeTargets.Class)]
    public class CORSSupportBehaviorAttribute : Attribute, IServiceBehavior
    {
        #region IServiceBehavior Members

        void IServiceBehavior.AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints, BindingParameterCollection bindingParameters)
        {
        }

        void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
            var requiredHeaders = new Dictionary<string, string>();

            //Chrome doesn't accept wildcards when authorization flag is true
            //requiredHeaders.Add("Access-Control-Allow-Origin", "*");
            requiredHeaders.Add("Access-Control-Request-Method", "POST,GET,PUT,DELETE,OPTIONS");
            requiredHeaders.Add("Access-Control-Allow-Headers", "Accept, Origin, Authorization, X-Requested-With,Content-Type");
            requiredHeaders.Add("Access-Control-Allow-Credentials", "true");
            foreach (ChannelDispatcher cd in serviceHostBase.ChannelDispatchers)
            {
                foreach (EndpointDispatcher ed in cd.Endpoints)
                {
                    ed.DispatchRuntime.MessageInspectors.Add(new CORSSupport(requiredHeaders));
                }
            }
        }

        void IServiceBehavior.Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
        {
        }

        #endregion
    }

using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.ServiceModel.Dispatcher;

    [CORSSupportBehavior]
    public class ScannerService : IScannerService
    {

• enabled: آیا این هندلر فعال باشد یا خیر.
• message: پیامی که باید به عنوان تگ درج شود.
• color: رنگ متن که به طور پیش فرض قرمز رنگ است.