.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Callback after upload in Chunking Channel

Posted By:      Posted Date: September 27, 2010    Points: 0   Category :WCF


I have hosted my Web Service in IIS(the end user will call Web Service hosted in IIS).

I have hosted my WCF in Windows Service(The Web Service hosted in IIS will call this WCF Service).

Whenever the upload completes, I need to inform the end user about it. All the othe services work fine, even the upload works fine. After the upload complets, I have used the following code to send the callback:

IMyServiceCallback callback=OperationContext.Current.GetCallbackChannel<IMyServiceCallback>();




View Complete Post

More Related Resource Links

Upload Multiple File using JQuery in asp.net

In this article I have explained how to upload multiple files using file upload control. I have used jQuery plugin for uploading multiple files.

I have also explained how to check for file type, file maximum size limit using jQuery & also using server side validation code.

Upload a File to a SharePoint Document Library - Part I

The following helper class demonstrates a few techniques that allow documents to be uploaded to a SharePoint document library programmatically without using the API or a custom web service. You don't need to specify a document library name, and it will create any folders specified in the URL as required. File meta data will be updated if any properties are passed.

Multi File Upload Using JQuery!

Everyone knows about the file upload in .NET. But the multi file upload is some what difficult in .NET. For that purpose we can have some AJAX or JQuery!. Jquery is the latest advanced version. It will give some animated upload. You can try it for your own!!!!

ASP.Net Upload Image to MS Access Database

As you learnt from the previous articles to upload image to the SQL Database in ASP.Net 2.0 and stream that image into the memory to retrieve it from the database and display it on the web page. In this article you will learn how to upload images to the MS Access database in ASP.Net 2.0

First of all create an Access Database and place it in the App_Data folder of ASP.Net web site project. Then create a table "tblImg" with the following fields:

Strange Photo upload problem


I'm working project it's live on shared hosting

we'er uploading photos to a file on the server everything works fine the photo is resized renamed and sent to the folder

the upload page returns the thumbnail and the full size photo it's there all the photos have to be approved by an admin

twice now after they have been approved they disapear I checked the folder they are not there could there be anywhere

on the server they could get hung up before they go into the folder I have it setup so when you delete the data base entry it deletes the photo from the folder othe than that you need to open the folder and delete the photo this has hapened twice now I tried to recreate it with no luck

thaks for your help in advance

file upload in chunks or not buffering in memory before writing to disk?


What are the options for handling file uploads to reduce the memory footprint?  Is there a way to upload in chunks?  Is there a way to stream upload directly to disk instead of loading entire file in server memory?


upload file not working



iam using masterpage and ajax update panel, i have child page called  fileupload.aspx,i try to upload the file

but its not working , can i use updatepanel in child page , pls very urgent

looking forward for answer.

Upload a Print Screen?


Is it possible to Print Screen and then immediately Paste into a .NET app and upload to a server?  I'd like to skip the step of the user having to first paste the screen into an image program and save as a jpg, gif, etc.  Thanks!

Upload transparent PNG image


Hi everybody

I'm creating a website where it must  be able to upload, crop and resize images. This works until I use transparent PNG images. When I upload a transparent PNG, the transparency becomes black. I've searched the whole internet, but found no solution so far. Can someone help me? This is my code. I'm working with MVC 2.

			try {
				HttpPostedFileBase file = Request.Files["image"];
				file.SaveAs(Server.MapPath("/Uploads/" + file.FileName));

				ViewData["ImageLocation"] = "/Uploads/" + file.FileName;
				return View();
			catch (Exception exc) {
				return RedirectToAction("UploadImage");

How to upload image in Mobile Application?


I have requirement to upload the image in mobile Web application using asp.net. For this I have add mobile templates but regarding to image there is no any file upload control. Then I see one article and use the below code:

<mobile:DeviceSpecific ID="DeviceSpecific1" Runat="server">
                <input style="width: 389px; height: 22px" type="file" size="45" runat="server" id="FileUpload1">

{ End Bracket }: Tune in to Channel 9


If you fly United Airlines, you can hear what's going on in the cockpit by turning the radio dial to Channel 9. Now if you want to get inside the head of Microsoft you can tune to Channel 9 on the MSDN Web site (see http://channel9.

MSDN Magazine September 2004

Secure It: WS-Security and Remoting Channel Sinks Give Message-Level Security to Your SOAP Packets


As more organizations adopt XML-based Web Services, the need for message-level security has become evident. WS-Security, now supported in the Microsoft .NET Framework, addresses this need. Using the WS-Security framework, developers can implement channel sinks to intercept Remoting messages as they pass through the .NET Remoting infrastructure. The sink can read the message, change it, and pass it along. During this process, the message can be signed for added security. This article explains how to implement a Remoting channel sink that will modify the Remoting message by including a UserName token in the header, then sign the body using the token.

Neeraj Srivastava

MSDN Magazine November 2003

.NET Remoting: Secure Your .NET Remoting Traffic by Writing an Asymmetric Encryption Channel Sink


As .NET Remoting gains popularity in the enterprise space, it must meet business demands for trustworthy computing. Remoting traffic can be secured when objects are hosted in IIS, but when they aren't hosted in IIS, custom security solutions can be developed to secure them. This article provides an in-depth look at writing channel sinks for .NET. It also details the flow of data through custom channel sinks and explains the kinds of manipulations that can be performed on that data.

Stephen Toub

MSDN Magazine June 2003

Basic Instincts: Implementing Callback Notifications Using Delegates


Delegates are a critical aspect of the Microsoft® . NET Framework and are required learning for many programmers. They will take some time to master, but once you learn how to program with delegates, you'll be thrilled with the possibilities they offer.

Ted Pattison

MSDN Magazine December 2002

Upload multiple files in asp.net

The article Upload multiple files in asp.net was added by habdulrauf on Friday, July 09, 2010.

Some times we need to allow user to upload as many files as he/she wants instead of fixed number of files.So here is the procedure to achieve this. Idea is taken from Joe's video.%@ Page Language="C#" AutoEventWireup="true" CodeFile

ASP.NET HTML Editor - Upload images

The article ASP.NET HTML Editor - Upload images was added by adarshtated on Tuesday, June 29, 2010.

In this article we are seen how to create a custom HTML Editor control to add image button in it.Create A Class-----------CustomEditor.cs------------------Add Name Spaceusing AjaxControlToolkit.HTMLEditor;namespace MyControls{ public class CustomEditor

file upload in Create User Wizard Created User event with UpdatePanel Tag wont work?



In my Create User Wizard1 Created User Wizard Event, I am collecting extra information from text boxes and allowing

the user to uplad a file.



I have put the Submit button within an Update Panel Tag but since I have done this it does not work.

Is there a way round it. In this situation would you use a trigger.?


<br />

  <asp:UpdatePanel ID="UpdatePanel2" runat="server">

  <asp:Button ID="StepNextButton" runat="server"  CommandName="MoveNext"  align="middle"
                                            Text="Submit my Profile" />

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend