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


Post New Web Links

WCF Data Service to JSON example? v4

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net
 

I would like to take WCF Data Service and produce JSON output to consume on various mobile apps.

Can anyone give me a how-to on the JSON part?  I.e., what is different than normal XML outut?


Thanks.

 




View Complete Post


More Related Resource Links

IE 8 partially cut of my JSON data return from WCF service

  
Hi All, I am not so sure here is the right place to post my issue. I am using ExtJS treepanel and ajax call to wcf webservice and return JSON array. My service return array. If array count is less than 2, then IE partially cut of my JSON data return from WCF service. But FireFox is working fine with same JSON format string. Very interesting thing is that I try to debug with Fildder. so I have to put "." dot in my url "http://localhost{.}:1234/ then It is working fine.   I am testing with IE8. Here is the JSON format return from FF and FireBug. {"result":[{"href":"..\/EMP\/EmployeeSearch.aspx","iconCls":"","id":"8c362443-7bb3-427e-910c-87b391c6abf5","leaf":true,"text":"Employees"}]} Here is the corrupted JSON string retrun from IE using developer tool. {"result":[{"href":"..\/EMP\/E" [OperationContract] [WebInvoke(Method = "POST", UriTemplate = "GetSiteMap", BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)] [return: MessageParameter(Name = "result")] List<TreeView> GetSiteMap(string node);

Web Service and JSON input data

  
Hy, I'm try to build a web service who can get in input a JSON string. My web method is: [WebMethod(Description = "Edit Entity")][System.Web.Script.Services.ScriptMethod(ResponseFormat = System.Web.Script.Services.ResponseFormat.Json)]public string ManageEntity(string _DataIn){ // System.Diagnostics.Debug.WriteLine(_DataIn);            return "{\"Result\":\"OK\"}";} When I try posting some data to the webservice I get the error "No parameterless constructor defined for type of 'System.String'". Why the system try to deserialize my JSON string? Is possible to simple retrieve the string? Thanks Lorenzo SonciniLorenzo Soncini

consuming wcf Data service in different format in client - SOAP (including a WDSL), XML, JSON, etc.

  
Hi I have implemented wcf data service with entity framework with the following steps, i want to know i can we consume this WCF Data service in different format like (SOAP, JSON, XML, PLIST). it will be helpfull if some one help on this. - Created web application with VS2010 and added edmx file and selected tables,views and SPs that i want to use - imported SP with complex type by using function import. - Created WcfDataservice (.svc File). - in SVC File i have added [webget] method as follows.         [WebGet]        public List<GetSearchResultWithComplextype_Result> GetSearchResultComplextype(string email, string Title, string Color)        {            Entities db = new Entities();            var query = db.GetSearchResultWithComplextype(email, Title, Color);            List<GetSearchResultWithComplextype_Result> caseList = query.ToList<GetSearchResultWithComplextype_Result>();            return caseList;        } - created one more client application and added service reference. here i want to cons

consuming wcf Data service in different format in client - SOAP (including a WDSL), XML, JSON, etc.

  
Hi  I have implemented wcf data service with entity framework with the following steps, i want to know i can we consume this WCF Data service in different format like (SOAP, JSON, XML, PLIST). it will be helpfull if some one help on this. - Created web application with VS2010 and added edmx file and selected tables,views and SPs that i want to use - imported SP with complex type by using function import. - Created WcfDataservice (.svc File). - in SVC File i have added [webget] method as follows.         [WebGet]         public List<GetSearchResultWithComplextype_Result> GetSearchResultComplextype(string email, string Title, string Color)         {             Entities db = new Entities();             var query = db.GetSearchResultWithComplextype(email, Title, Color);             List<GetSearchResultWithComplextype_Result> caseList = query.ToList<GetSearchResultWithComplextype_Result>();             return caseList;         } - created one more client application and added service reference. here i wan

Post JSON data to WCF RESTful Service using jQuery

  
The POST request method is basically designed to post data to a web server for storage. That's why its normally used when submitting a complete form. In this WCF RESTful service tutorial, I'll try to explain how we can post JSON data to a WCF RESTful service using jQuery Ajax call with POST type. We discussed about "POST" HTTP verb in previous WCF tutorials but we didn't use it in our implementation. Purpose of this article is to understand "POST" request with complete implementation for a specific operation.

Data Points: Service-Driven Apps With Silverlight 2 And WCF

  

Here John Papa demonstrates how to build a Silverlight 2 user interface that communicates through WCF to interact with business entities and a database.

John Papa

MSDN Magazine September 2008


Writing Data to database with jQuery Forms, ASMX Webservice, & JSON - help!

  

Hi, 

Can someone point me in the right direction on how to submit data from a jQuery form to a ASMX webservice? I have gotten everything on the form ready to be submitted to the database and now I am stuck on how to send it over using $.ajax(). Everything I have read tells me how to get data from a webservice and display it with jQuery, but not the other direction nor how to access the json data within the within the webservice service(similar to a Request.Form approach with ASP.NET forms).

In other words: 

1. What do I need to do to my webservice to make sure it can receive data from the jQuery form. 

2. What do I need to do in jQuery to receive an acknowledgement the save on the server side was successful. 

I can explain more if need be, but if there is a comprehensive tutorial on not only reading, but also WRITING data with jQuery, JSON, etc. I would love to get pointed in that direction. 


unable to use wcf service with json in asp.net

  

Hi,

I have developed a wcf service for asp.net ajax client. It includes the following steps.

(1) Created WCF sevice contract with the operation "DoWork()" which will take string as input and retun string as output.

(2)Implemented the above operation contract(attributed the implementation class with aspnetcompatibility requirement as enabled).

(3)Added the webscriptenabled to endpoint in web.config file.

(4)Hosted the wcf servie. 

(5)Downloaded the javascript file from the service.(e.g.,http://localhost/service1.svc/js)

Client

(1)Opend new asp.net webapplication.

(2)Added the downloaded .js file.

(3)Given the scripts path for ajaxscript manager as both .js file and service url.

e.g

<asp:ScriptManager ID="id1"

MERGE using jQuery with a WCF Data Service

  
I'm a bit new to the whole asp.net thing so this is probably a silly question, but here it goes: I have created a WCF Data service based based on a ADO.net Entity--it's very basic: namespace raid{ public class allPeopleDataService : DataService< raid.raidEntities > { public static void InitializeService(DataServiceConfiguration config) { config.SetEntitySetAccessRule("*", EntitySetRights.All); config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2; } }} I've been successfully retrieving data using jquery's '$.getJSON' and inserting data using a modified $.ajax: $.ajax({url: "/allPeopleDataService.svc/lists",dataType: 'json',contentType: 'application/json',data: $jsonObj,processData: false,type: 'POST'}); I was reading the post at http://msdn.microsoft.com/en-us/library/cc668771.aspx and trying to use the MERGE method to update parts of the data with the following jquery jsont = { "__metadata": { "uri": "/allPeopleDataService.svc/lists(1)", "type":"raidModel.list" }, "list_name": "list blah blah" }; $.ajax({ url: "/allPeopleDataService.svc/lists(1)", dataType: 'json',

All data in class properties disappear across WCF service

  
Hi, I have a class that i share betwee silverlight client and wcf service. I populate properties of the class with real data from the client, to be used in the server. I use debugger to step through the code when the call gets to the server, all the data ara gone and are replaced with null. All DateTime value change to 1/1/1001. But if pass primitive types such as int, string, no problem. This is happening only on one machine, but not on ther machine. Can someone tell me what is going on here? Thanks in advance

Customizing pages with Asp.Net Dynamic Data Domain Service Web Applications?

  
Hola, It used to be so easy creating new folder under CustomPages with the (Entity/Table name) and copying on it all base default PageTemplates (Details, Insert, Edit, List and ListDetails) and you will get access to those pages only for the specific table (this was the default automatic behavior of the Dynamic Data framework) When it comes to be using Asp.Net Dynamic Data Domain Service Web Applications it seems that we need to learn a new way of doing this because it is just simply different and you got a lot of errors when compiling your application if you do this the old way? What might be the new way, uh? HOW DO WE DO THIS NOW ... I MEAN ... CREATING DEFAULT CUSTOM PAGES FOR SPECIFIC TABLES (Details, Insert, Edit, List and ListDetails) with Asp.Net Dynamic Data Domain Service Web Applications? The problem arises when the definition for your newly created classes is absent from the automatically generated code when you created your domain service !!!!! . If you simply copy the PageTemplates as they are, you got a duplicated error message because the new .designer file (automatically generated) conains the definition of the class you are copying (not the newer one) so even if you rename your .aspx file the result is not what you would normally expect (the .designer class is not regenerated after renaming). The .designer file keeps the domain service definition and if y

Service Operation - Get proper data when browsing the service, but not when calling the service from

  
Hello, I recently implemented a service operation in an attempt to pass some filter parameters to a data service (a user guid and an organization, actually, for impersonation of a user on the service's call to the application). I successfully added the service operation to the data service, and I can browse the service and see the data filtered as I expected. However, when I call the service operation from the Silverlight client, I don't get any results, even though I should. Am I missing something? Code below if it's helpful. Thanks! Service Operation Definition: [WebGet] public IEnumerable<opportunity> filteredopps(string userid, string org) { /*Define the connection with the impersonated user*/ CrmConnection crmc = CrmConnection.Parse("Authentication Type=Passport; Server=https://" + org + ".crm.dynamics.com/" + org + "; User ID=myuser; Password=mypassword; Device ID=mydeviceid; Device Password=mydevicepassword"); crmc.ImpersonatedUser = new Guid(userid); var crmOnline = new DataContext(crmc); List<opportunity> uplist = new List<opportunity>(); crmOnline.UsingService(service => { var query = from o in crmOnline.opportunityopportunities select o; foreach (opportunity thisopp in query) { uplist.Add(thisopp);

Documentation on impersonation of Windows LiveID with data service?

  
Hi There, I'm not finding any documentation on impersonating a Windows LiveID over a WCF data service. I can find documentation on Windows Auth. For example, this article is great, but its first step is "Configure Your Service to Use Windows Authentication": http://geekswithblogs.net/manesh/archive/2009/04/23/setting-up-wcf-to-impersonate-client-credentials.aspx. I'm not sure how to do this when I'm working with the LIVEID. Alternatively, and even preferably, if there's a way I can manipulate the connection string the data service is using from the WCF endpoint, that would be ideal. I need to grab some info about the user in the Silverlight app that's using the data service, and somehow impersonate that user. The user is a Windows LiveID, which is what I have hard-coded in my connection string in my web.config. Thanks!  Web: http://invoc.net

User Profiles Service Application and Import of SharePoint 2007 SSP data

  
I have setup a test SharePoint 2010 Farm. I will be using this as a test upgrade of a current live SharePoint 2007 Farm. The database attach method will be used. I have replicated the web application and AAM settings of the SharePoint 2007 Farm to the SharePoint 2010 Farm and have made the 2010 Farm a DC in a new Forest. I don't want to join this to the current domain at the moment. It also has SQL server 2005 with SP3 and cumulative update 3 installed. I have just setup the User Profiles Serice Application and when I go to Manage it, I get this. Error An unexpected error has occurred.   Troubleshoot issues with Microsoft SharePoint Foundation. Correlation ID: a1760e87-372f-4711-afac-3ceba34bc599 Date and Time: 8/31/2010 4:22:56 PM I have verified and configured the following. Created the Managed Metadata Service. The status is started via Service Applications and Services on Server. Created the User Profiles Service Application and ensured status is started via Service Applications. I started the User Profile Service and User Profile Synchronisation Service via Manage Services on Server.      

How to query for id's of the fields with List Data Retrival Services Query() web service

  
Since i marked a post as answer in my previous topic, it seems that people dont visit the topic anymore as they see it as "answered" while it actually is only partially answered. So i guess i have to ask again in a different topic.    I need to get data from Sharepoint Server (3.0 i belive) for my Integration Services project. For that i use Sharepoint's webservices. I've read tutorials and downloaded sample programs to talk to WSS web services. I realise i have two ways to get items in a list: Use Query() or GetListItems(). Problem is, GetListItems() has a mandatory "Row limit" field and i might have to import ALOT of fields, so i thought Query() is better for me.  But, when using GetListItems(), the WSS returns the ID of the fields (for example, for a field of type user, something like "395;Ivanov Ivan Ivanovich" is returned) but when using Query() for the same list, WSS returns only the field value ("Ivanov Ivan Ivanovich") without the ID. I need it to return the ID as well. How can i set it up, on my side or server side, so i would receive the ID's, not only the values of the fields that are actually linking to something by ID when i use Query() web service?     

Not able to read Config File data in Windows Service

  
While I'm trying to read connection string which is in App.Config file I'm getting error like "Object reference not set to an instance of an object." string strconn = System.Configuration.ConfigurationManager.AppSettings["ConnectionString"].ToString(); For the windows service where I need to keep app.config file and how to integrate that config file with the windows service exe file. Thanks in advance.

Reporting Service Model with db2 data source?

  
Sorry if this has been already asked.  I searched, but couldn't find it any previous posts. My question is can you have db2 as a datasource in Reporting Service Model?  Currently in the drop down I can only see SQL, which we have a few models over, and Oracle.  We are using SQL server 2008 r1. If not does Microsoft have any plans to add this in the future? Thanks for any help!
Categories: 
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