I'm playing around with WCF Data Services (ADO.NET Data Services). I have an entity framework model pointed at the AdventureWorks database. When I debug my svc file from within Visual Studio, it works great. I can say /awservice.svc/Customers and get back the ATOM feed I expect. If I publish the service (hosted in an ASP.NET web appl...
Im using DataServices and OData protocol, i need to generate Get, Post, Delete, and Update from a c++ aplication. how i can do this? the easiest way ?? ...
Hi, I'm thinking about to write a restful service which is able to upload and stream large video files (GB) (in future it might not only be videos and could also be large documents. I researched so far and what really makes sense to me could be to use off: WCF Data Services and Implement IDataServiceStreamProvider and on the back-end ...
Hi! I have an ASP.NET 4.0 website that has an Entity Data Model hooked up to WCF Data Service. When the Service and Model are in the same assembly everything works. Unfortunately, when I move the Model to another "shared" assembly (and change the namespace) the service compiles but throws a 500 error when launched in a browser. The r...
I'm looking for the full list of supported linq extension methods that are compatible with WCF Data Services. By trial and error I've found First( Func ) and Single( Func ) aren't supported, any others? This gives me a pretty good idea of whats supported, I just don't know whats actually translated via the IQueryProvider. ...
Hey all, I have two functions in a SL project (VS2010) that do almost exactly the same thing, yet one throws an error and the other does not. It seems to be related to the projections, but I am unsure about the best way to resolve. The function that works is... public void LoadAllChunksExpandAll(DataHelperReturnHandler handler, string ...
Hi, I have stored some records in to database using ADO.NET Entity Framework. I want to know total record count in particular table using ADO.NET Entity Framework in C#.Net . I given some example, but it is not working. EX: DataServiceQuery<BunHistory> query= context.BunHistory.IncludeTotalCount(); QueryOperationResponse<B...
Hi! I've created an ADO.Net WCF Data Service hosted in a Azure worker role. I want to pass credentials from a simple console client to the service then validate them using a QueryInterceptor. Unfortunately, the credentials don't seem to be making it over the wire. The following is a simplified version of the code I'm using, startin...
I would like to use output caching with WCF Data Services and although there's nothing specifically built in to support caching, there is an OnStartProcessingRequest method that allows me to hook in and set the cacheability of the request using normal ASP.NET mechanisms. But I am worried about the worker process getting recycled due to ...
Hi, I am working on C#.Net with ADO.NET Dataservice WCF Data Services. I try to update one record to relational table, when I reach context.SetLink() I am getting exception("The context is not currently tracking the entity"). I don't know how to solve this problem. My code is specified below. LogNote dbLogNote =logNote; LogSubSession...
I have a application where I want to connect to a server using WCF DS with username/password. In addition I want each client to also have a certificate (different for each client). How can I solve this in the most simple way? It must be simple to deploy new certificates to the client. ...
Hi, I'm trying to display data from WcfDataService (VS2010) in WPF DataGrid. Everything works. except of normal validation. I was trying to make validation both with default WPF validation and IDataErrorInfo, but I can't get working all features I need. That is list of problems and questions: 1) How to disable DataGrid built-in check f...
Let's say I have an web CMS type application, and an EDM model with an entity called 'article', and I need to offer the ability for client applications, to a read/query the articles (and other resources stored in our database) a straightforward syndication feed of these articles to end users (along the lines of a simple RSS feed) It ...
Hi, I have an entity model, in which I have a table per type inheritance. There are 3 types, first, Contact, which I defined as abstract in my EF model and the rest are Company and person types which are derived from contact type. I was trying to insert a person record via the ado.net dataservices and ended up getting the following er...
LinqPad supports WCF Data Services. If you assign an URL, such as http://services.odata.org/Northwind/Northwind.svc/. It will list all available data objects and you can query them. I guess LinqPad generates all available data classes at run time by reflection.Emit. I am wondering who can show me to how to do so. Or maybe someone has d...
Try to understand what the options might be with use of WCF Data Services, Basicly i'm trying to abstract a 3rd party http API by making a RestFull services from the 3rd Party set of api calls. On top of this im intrested in the Odata representation and Api support that Data Services. Example 3rd Party Call, 1)GetAll Vehicles I ...
I am developing a WCF Data Service over an Entity Framework 4.0 data model, but there's no way we can go to Production under the current circumstances. My client application is adding and modifying a lot of objects, around 100,000. Then it calls the service's SaveChanges method to persist all changes in a single action. The WCF Data Ser...
I'm having a hell of a time getting WCF Data Services to work within Silverlight. I'm using the VS2010 RC. I've struggled with the cross domain issue requiring the use of clientaccesspolicy.xml & crossdomain.xml files in the web server root folder, but I just couldn't get this to work. I've resorted to putting both the Silverlight Web A...
I'm using some code (available here on MSDN) to dynamically build LINQ expressions containing multiple OR 'clauses'. The relevant code is var equals = values.Select(value => (Expression)Expression.Equal(valueSelector.Body, Expression.Constant(value, typeof(TValue)))); var body = equals.Aggregate<Expression>((accumulate, equal) => Exp...
Hello, you will think: "This problem has been solved many, many times. So why doesn't he use Google?" Please, believe me, I tried everything. I'm dealing with this problem since last week. I read many blogs and searched the MSDN. But I don't get it. So here is the problem. There is one Silverlight 4 app and a WCF DataService, both are ...