Now that our server is running silverlight 4 and wcf ria services, there is no stopping us now. Note that at this stage your service should be configured for binary message encoding and the. Telerik reporting configuration settings must be applied in the service project configuration file. Figure 4 a wcf data services codebehind file with configuration of entity set access rules. The iis 6 has only one domain baseadress for the wcf services. The first project is a wcf service for saving and retrieving the blog data. Net framework and compatible with multiple browsers, devices and operating systems, bringing a. Sep 02, 2010 this is a video that demonstrates how to create a reference to a wcf service from a silverlight application. Deploying wcf and silverlight applications on iis 5 and 7. Jul 16, 2012 could not load file or assembly microsoft. Silverlight how to support uploading files larger than 16k in wcf ria services. Creating a silverlightenabled wcf service visual studio.
Download the northwind streaming data service sample from the msdn code gallery web site and follow the instructions in the sample readme file to deploy the service on iis. Most browser plugins including silverlight, flash, java and almost all activex controls only work in 32bit browsers currently. Jim jackson uploading a file to sql server via silverlight, wcf. Setup silverlight application with wcf service to run over.
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. Add a service reference to the silverlight application pointing to your wcf service. Since the data received is in the form of xml, any client application built on open standards can easily consume it. Northeast roadshow silverlight with wcf, wcf rest, and ado. Net framework and compatible with multiple browsers, devices and operating systems, bringing a new level of interactivity wherever the web works. When you c an not find the edit wcf configuration here, g oto tools select edit wcf configuration. In previous articles, we have discussed how we can upload a file using. Wcf data services provides integration with data model built using ado. Rightclick the silverlight project and click add service reference. Reading data from wcf data service in silverlight 4. Silverlight application with mvvm, wcf and entity framework. Uploading and downloading images from wcf in silverlight.
Rather than let good research go to waste, i am posting the steps here. Additional information about silverlight client timeout. Back directx enduser runtime web installer next directx enduser runtime web installer. 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. You must create a separate web site for the silverlight application. It will lead you to the front door of success but not let you into the building. Here, in continuation to the topic, i am going to discuss how we can use wcf for the same purpose. This article demonstrates how to make use of wcf rest service for downloading files.
In the second step, create the object of your wcf service. Here we are going to use silverlight and wcf technology. Silverlight enabled wcf service that will have a number of silverlight friendly defaults, including the correct binding. 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. Apr 29, 2020 this code sample demonstrates how to consume nettcp wcf in silverlight by creating a simple weather report subscription. 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. First, although its possible to restrict the download of your silverlight application. May 08, 2012 silverlight doesnt have upload control, here we are uploading a file using openfiledialog from silverlight client to server location using wcf. While working on silverlight and wcf, i found out some very interesting things and i feel that those are worth sharing. Ive developed a silverlight application, in which i offer download video file feature. 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.
Note the dlls that are added when you enable wcf ria service support. Downloading in chunks using wcf and silverlight codeproject. Wcf is a great tool, and because of the streamlined nature of silverlight, it is virtually essential for various types of data access. The video files are to be downloaded from a ftp server. Figure 3 shows the new item template in visual studio. Dec 07, 2009 objective this article will explain, how to upload a file from silverlight client to server location using wcf. 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. For our demonstration we will create a silverlight client application, silverlight host web application and a wcf service. We show how to do silverlight binary serialization and compression with wcf services. I read ftp is not supported in silverlight, not even in silverlight. In the address text box, type the uri for the deployed northwind streaming data service and then click go. The design there are two projects included in the design of the silverlight blog.
File upload in silverlight using wcf experts exchange. In silverlight, we often come across a very common requirement to consume cross domain services. To consume the wcf service is a three step procedure. In silverlight web application add add new item silverlight enabled wcf add. Silverlight, wcf ria, azure press here to view live example intro i have written this article after spending some time configuring wcf ria service in my application. Silverlight binary serialization and compression with wcf. Silverlight is a powerful development tool for creating engaging, interactive user experiences for web and mobile applications. This is the first post on a small series about transferring large files with wcf using streaming. If your initial testing of a silverlight application worked but now you are failing on large production data, this tip may be for you. This code sample demonstrates how to consume nettcp wcf in silverlight by creating a simple weather report subscription.
How to return list from wcf to silverlight file the asp. For a complete set of source code, please find the attached file. A local area network is essential to test our application. Here, in continuation to the topic, i am going to discuss how we can use wcf. Net framework server and client libraries as well as silverlight client libraries. Maxvalue in the silverlight service configuration file and in the wcf service configuration section under nfig. 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. Yes, i am using a very extremely large scenario to demo the story. I find it convenient also to reference web services used by the silverlight client relative the base url of the rest service the url of the browser. Using the configuring wcf on iis7 document, i opened up the nfig file and removed all entries that pointed to the servicemodel version 3. Silverlightenabled wcf service that will have a number of silverlightfriendly defaults, including the correct binding. The telerik reporting wcf service is a standard wcf service and is compatible with all hosted models described in the hosting services. So in this article, we have seen how to create a simple silverlight application in the mvvm pattern with wcf and the entity framework.
To do this you have to alter nfig file for the web site that hosts the service. This is the model side of our mvvm architecture model view viewmodel. Wcf ria services simplifies the traditional ntier application pattern by bringing together the asp. If the silverlight timeout is not shorter than iewininet default timeout, changing servicesreferences. This application hosted on a web site accesses a stateful socket server for screenpop, wcf based web services for accessing lob data, and it may download additional xap packages zipped silverlight deployment packages from a different domain. Id like to save that array as a pdf file using filestream. Generating proxies i am writing this post because there just isnt good information on generating your own proxies for silverlight accessing a wcf service. Net application uses silverlight control, and wcf service is used by silverlight to get data from other locations. 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. Silverlight how to support uploading files larger than. Now that our grid is created its time to bind the wcf service with the grid.
Add a new silverlight enabled wcf service and call it uploader. Figure 4 shows the content of the mywcfdataservice. Jun 21, 2009 now that our grid is created its time to bind the wcf service with the grid. Ive created a solution in vs2010 with the three projects above.
You have added your service refefence in your application then you can call the method and that method will return list. Hosting silverlight application in a wcf rest service this. Here is an example of the entire server side system. Telerik reporting wcf service telerik reporting documentation. Contribute to foxjazzwcf filemanager development by creating an account on github. Nov 05, 20 microsoft download manager is free and available for download now. Processingobjectmodel you can follow the following steps to copy it from gac global assembly cache. Difficulty level download information to download this code sample, click the following link. 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. I read ftp is not supported in silverlight, not even in silverlight 4.
At the time of adding service reference go to advanced and change the collection type drop down to system. The web project works like a server project with all the database related classes and services. In this article i am providing a basic explanation of the use of silverlight and wcf. In one of our products, we had to use wcf service with silverlight. Creating a blog application using silverlight and wcf. Hi, im making a solution in silverlight 4 using mvvm pattern, and im having trouble accessing my wcf service with it. For example, here is my timeout setting in my servicesreferences. This article applies to the following technologies. When a user selects one of these i want to download a set of related files to their computer. Click on diagnostics and choose enable message logging and tracing. This article is written based on a prerelease version of silverlight and could change in future. Rightc lick on nfig file and select edit wcf configuration. 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.
This way, you can securely download the large file. In addition i cover the basics of making an asyncronous call to the service and binding. Uploading a file to sql server via silverlight, wcf and ef. 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. Ria services provides a pattern to write application logic that. I have a sl 3 application connected to a wcf service. Use silverlight in the 32bit internet explorer process on x64 systems. Technical overview to demonstrate silverlight accessing wcf, you may need a wcf service and a silverlight wcf client. Deploying and configuring silverlight 4 and wcf ria services. Creating silverlight application to consume the wcf service.
So go to the behind code of the xaml file and create the wcf service object. There are two important points to be noted when we call wcf service using from silverlight. The hardest part of writing this application for me was figuring out how the heck to hook up wcf to silverlight. Download files using wcf rest endpoints dotnetcurry. Creating a silverlight application to consume a wcf service.
Silverlight 2, 3, or 4 preferably the right version of silverlight. 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. Ill cover the following topics in the code samples below. You can download a sample soapbased clientserver application from the. Now, lets add an operationcontract to your wcf services interface called speak that returns a byte, and takes a string parameter. We need to call the wcf asynchronously, so we have called getcustomerasynch. Sep 12, 2010 a wcf rest service is an easy way to test silverlight applications or host utility apps that dont need to be especially scalable. How to enable tracing and error message logging in. Step by step using silverlight to access a wcf service. How to save a byte array to a file from silverlight stack overflow. Downloading file as byte array from azure blob storage in wcf.
In order to call the wcf service, we need to define event handlers. In this article, i will demonstrate how it is done using silverlight 4. Open a command prompt select startrun and then enter cmd and press. In this article we are going to explore the wcf ria services with silverlight 5. 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. Step by step using silverlight to access a wcf service hosted in a console application note. Sometime you may come with requirement to upload an image from silverlight client to azure blob. 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. Next to uploading, users may want to download files such as images, which are stored as a physical file on the server as well. I will create a sample application and explain things stepbystep. Objective this article will explain, how to upload a file from silverlight client to server location using wcf. The nfig alteration allows a wcf service to feed large blocks of data to silverlight. Silverlight build lineofbusiness enterprise apps with.
How to consume wcf service over tcp transport in microsoft. Generating proxies for silverlight accessing a silverlight. Create a simple silverlight application and add the service reference to your silverlight project. File upload from silverlight using wcf dhananjay kumar. Sep 02, 2011 hi, im making a solution in silverlight 4 using mvvm pattern, and im having trouble accessing my wcf service with it.