Silverlight wcf file download

Ria services provides a pattern to write application logic that. But when i want to save them in my sl app i have two problems. How to return list from wcf to silverlight file the asp. Wcf large file download upload service codeproject. To do this you have to alter nfig file for the web site that hosts the service. File upload in silverlight using wcf experts exchange. Net application uses silverlight control, and wcf service is used by silverlight to. In silverlight it is difficult to design a good interface for how the user saves the file.

Add a service reference to the silverlight application pointing to your wcf service. They discuss the road their teams took to create ria. Creating a silverlightenabled wcf service visual studio. Using the configuring wcf on iis7 document, i opened up the nfig file and removed all entries that pointed to the servicemodel version 3. So go to the behind code of the xaml file and create the wcf service object. Net data services ctp2 see this blog post for a complete list of the features in ctp2. Maxvalue in the silverlight service configuration file and in the wcf service configuration section under nfig. As an alternate approach to creating the wcf service, you can choose the file item template in visual studio to create a silverlight enabled wcf service. Nov 05, 20 microsoft download manager is free and available for download now.

Ive created a solution in vs2010 with the three projects above. A sample for uploadingdownloading large files from a browser to a wcf service via a web server. It doesnt seem to be possible to browse for a folder location. If your initial testing of a silverlight application worked but now you are failing on large production data, this tip may be for you. In silverlight web application add add new item silverlight enabled wcf add. Wcf is a great tool, and because of the streamlined nature of silverlight, it is virtually essential for various types of data access. Uploading a file to sql server via silverlight, wcf and ef. The video files are to be downloaded from a ftp server. Here is an example of the entire server side system. Ive developed a silverlight application, in which i offer download video file feature.

You can download a sample soapbased clientserver application from the. This post was mentioned on twitter by larry king, sony arouje. Objective this article will explain, how to upload a file from silverlight client to server location using wcf. This article shows how to use wcf service with silverlight.

Next to uploading, users may want to download files such as images, which are stored as a physical file on the server as well. Now, lets add an operationcontract to your wcf services interface called speak that returns a byte, and takes a string parameter. Downloading in chunks using wcf and silverlight codeproject. This way, you can securely download the large file. Jun 12, 2010 download the new xap file and compare the current version against the downloaded version from the manifest detect the current silverlight version vs. This repository has some examples visual studio projects each in different folders, used client server technology. Although you can create a wcf service and then manually change the binding in the services configuration file, the easiest way to get started creating wcf services is to use the silverlightenabled wcf service template in the add new item dialog of visual studio 2008. Full credit goes to syed mehroz alam, who diagnosed the problem and documented the solution in his blog post, retrieving huge amount of data from wcf service in. Silverlight how to support uploading files larger than 16k. Here we are going to use silverlight and wcf technology.

Net framework and compatible with multiple browsers, devices and operating systems, bringing a new level of interactivity wherever the web works. I will create a sample application and explain things stepbystep. How to consume wcf service over tcp transport in microsoft. This post attempts to highlight some of the intricacies involved in connecting a wpf client to the existing silverlight 2 polling duplex demo previously published on this blog.

Now that our grid is created its time to bind the wcf service with the grid. In previous articles, we have discussed how we can upload a file using. The entire source code of this article can be downloaded over here. Silverlight wcf samples this repository contains the source code of the examples of usage stimulsoft reports. Uploading and downloading images from wcf in silverlight. I read ftp is not supported in silverlight, not even in silverlight 4. To do that, rightclick on the silverlight project and select add service reference once the service dialog box comes up, click the discover button and you should see your service in the list after giving your service a namespace and selecting ok, there are. Anyone can download our silverlight application the. Silverlight doesnt have upload control, here we are uploading a file using openfiledialog from silverlight client to server location using wcf. You have added your service refefence in your application then you can call the method and that method will return list. Dec 12, 2010 generating proxies i am writing this post because there just isnt good information on generating your own proxies for silverlight accessing a wcf service. In this article we are going to explore the wcf ria services with silverlight 5.

We have also experimented with using a separate multifile download service. As you can see, it is very easy to create a document download upload wcf service which can be used across multiple applications. Anyone can access our wcf service, call its methods and get our data. Note the dlls that are added when you enable wcf ria service support.

Silverlight security securing your silverlight applications. It contains many files needed to run silverlight application at. May 17, 2010 nikhil kothari and dinesh kulkarni join john to announce the official release of wcf ria services v1. We need to call the wcf asynchronously, so we have called getcustomerasynch. Securing silverlight application and wcf service using asp. The nfig alteration allows a wcf service to feed large blocks of data to silverlight. Back directx enduser runtime web installer next directx enduser runtime web installer. While working on silverlight and wcf, i found out some very interesting things and i feel that those are worth sharing. The telerik reporting wcf service is a standard wcf service and is compatible with all hosted models described in the hosting services. Download the new xap file and compare the current version against the downloaded version from the manifest detect the current silverlight version vs. This is the second in a series of posts on the support for duplex communication with a wcf service added to silverlight 2 beta 2 i should point out that this technology in its current form has been deemed by microsoft as not yet fit for production applications and is therefore. Wcf ria services simplifies the traditional ntier application pattern by bringing together the asp. Id like to save that array as a pdf file using filestream.

Recently microsoft released silverlight 4 beta which includes an update to the data services silverlight client. Nikhil kothari and dinesh kulkarni join john to announce the official release of wcf ria services v1. May 08, 2012 silverlight doesnt have upload control, here we are uploading a file using openfiledialog from silverlight client to server location using wcf. Here, in continuation to the topic, i am going to discuss how we can use wcf for the same purpose. The default telerik reporting wcf service implementation uses asp. Silverlight binary serialization and compression with wcf. Net session in order to store various resources such as report pages and images. In one of our products, we had to use wcf service with silverlight. Mar 05, 2011 this is the web site which will host the xap file. May 30, 2011 i have a silverlight application that reads a sql server database via wcf and displays icons of files that are in a proprietary cad format. Telerik reporting wcf service telerik reporting documentation.

Sep 07, 2010 once wcf returns the chunk data, the silverlight application will open the filedialog and write the data into the stream, if the file size is greater than the chunk size, the program will call the wcf function again and get the next chunk. Getting a website setup can be a tedious process and constantly deploying can be annoying especially if the service is not an integral one to the functionality of an application. Nov 17, 2011 today, i was trying to figure out why my wcf service call always threw the generic notfound exception when trying to retrieve large datasets. The iis 6 has only one domain baseadress for the wcf services. So silverlight development arguably has more in common with windows forms or wpf than with asp. Dec 07, 2009 objective this article will explain, how to upload a file from silverlight client to server location using wcf. I then explain how to create wcf services with custom binding and then consume the secured wcf service using silverlight 4. Silverlight viewer to wcf in reporting reporting telerik. Typically silverlight apps are hosted in iis or on some other web server. When a user selects one of these i want to download a set of related files to their computer. Would it be a good idea if i use wcf services which actually downloads from ftp and sends back the data to the silverlight client. Net, silverlight is a clientside technology, so it runs on users computers.

Once wcf returns the chunk data, the silverlight application will open the filedialog and write the data into the stream, if the file size is greater than the chunk size, the program will call the wcf function again and get the next chunk. The wcf ria services is a framework that provides a pattern to write application logic that runs on the midtier and controls access to data for queries, changes and custom. Downloading large file in one shot is risky so the idea is from the ui silverlight application user can call the wcf function to download the. I have a sl 3 application connected to a wcf service. The wcf ria services is a framework that provides a pattern to write application logic that runs on the midtier and controls access to data for. I am assuming here, that reader has a basic concept of wcf create wcf service consume in silverlight client follow the steps below step 1 create and host the. Part iiiwcf streaming is helpful in all those cases when you need to move a lot of data between the client and the service in a way that keeps memory consumption under control see large data and streaming on msdn for. To make your own implementation, create your own service class derived from reportservicebase and override its getstate and setstate methods.

How to download doc file from server in silverlight4. Browse other questions tagged wcf silverlight file silverlight3. Call asyncronous method of wcf to get the bytes of a file 2. They discuss the road their teams took to create ria services, some of the decision points tha. Although you can create a wcf service and then manually change the binding in the services configuration file, the easiest way to get started creating wcf services is to use the silverlight enabled wcf service template in the add new item dialog of visual studio 2008. Telerik reporting configuration settings must be applied in the service project configuration file. Generating proxies i am writing this post because there just isnt good information on generating your own proxies for silverlight accessing a wcf service. It contains many files needed to run silverlight application at the client browser. As an alternate approach to creating the wcf service, you can choose the file item template in visual studio to create a silverlightenabled wcf service.

Code download updated to support silverlight 2 rtw code downloadintroduction. In silverlight web application add add new item silverlightenabled wcf add. This new mode was added mostly to enable the performance improvements in the polling duplex protocol, but it can also be used by itself, such as to download a large file from a wcf service. Technical overview to demonstrate silverlight accessing wcf, you may need a wcf service and a silverlight wcf client. Most browser plugins including silverlight, flash, java and almost all activex controls only work in 32bit browsers currently. Now that our server is running silverlight 4 and wcf ria services, there is no stopping us now. At the time of adding service reference go to advanced and change the collection type drop down to system. There are two important points to be noted when we call wcf service using from silverlight. We show how to do silverlight binary serialization and compression with wcf services. In order for silverlight to call a remote resource on a different domain from where the xap file was served such as a web service,the domain where the service must grant access to the silverlight application. Use silverlight in the 32bit internet explorer process on x64 systems.

I have a silverlight application that reads a sql server database via wcf and displays icons of files that are in a proprietary cad format. Ill cover the following topics in the code samples below. Silverlight is a powerful development tool for creating engaging, interactive user experiences for web and mobile applications. In silverlight folder i have a project called servicelinkproject, that is a project that has link to entity files. For our demonstration we will create a silverlight client application, silverlight host web application and a wcf service. File upload from silverlight using wcf dhananjay kumar. Contribute to foxjazzwcf filemanager development by creating an account on github.

Silverlight how to support uploading files larger than. Open a command prompt select startrun and then enter cmd and press. In many ways, this is one of silverlights greatest advantages, as it removes many of the problems caused by the stateless nature of web applications. Difficulty level download information to download this code sample, click the following link. It will lead you to the front door of success but not let you into the building.

Jul 08, 2010 after seeing some questions about this new feature added in silverlight 4, i decided to post an example to see how it can be used in some real world scenarios. Deploying and configuring silverlight 4 and wcf ria services. Every time you run silverlight application, automatically visual studio creates the xap file and deploy to the web site. Hosting silverlight application in a wcf rest service. Apr 29, 2020 this code sample demonstrates how to consume nettcp wcf in silverlight by creating a simple weather report subscription. After seeing some questions about this new feature added in silverlight 4, i decided to post an example to see how it can be used in some real world scenarios. When using silverlight wcf ria you dont register the services because the silverlight framework performs it for you during runtime using the default configuration. Silverlightenabled wcf service that will have a number of silverlightfriendly defaults, including the correct binding. Net application uses silverlight control, and wcf service is used by silverlight to get data from other locations. Processingobjectmodel you can follow the following steps to copy it from gac global assembly cache. Jun 21, 2009 now that our grid is created its time to bind the wcf service with the grid. Setup silverlight application with wcf service to run over. Jul 16, 2012 could not load file or assembly microsoft.

Generating proxies for silverlight accessing a silverlight. This is the first post on a small series about transferring large files with wcf using streaming. Once we compile our web project, we can move on to adding our new wcf service to the silverlight application. Jim jackson uploading a file to sql server via silverlight, wcf.