Adding A Service Reference Throws A Contract Error?
Oct 20, 2010
I added a service reference via the add service reference method. I can see all of its services in the intellisense but when I run the project and it executes the line where I instantiate the service : MyProjectName.ServiceReferenceName.IServiceReferenceClient
client = new MyProjectName.ServiceReferenceName.ServiceReferenceClient;it throws this error:Could not find default endpoint element that references contract 'ServiceReferenceName.IServiceReferenceClient' in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this contract could be found in the client element.
I have a WCF service which has 4 Operation contracts.
I have added a new contract and it gets the data from database and returns the result set.
I can access the new contract and the service get the correct result set. But while passing the result set to the client I get the error of The underlying connection was closed: The connection was closed unexpectedly.
What are the steps to follow after adding a new contract like new binding etc.
After moving application to shared hosting I cannot add service reference to .asmx and WCF services that used to work on dedicated server.The error in adding WCF service reference is:
There was an error downloading 'address ... Service.svc'. The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF Metadata contains a reference that cannot be resolved: 'address ... Service.svc'. The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF If the service is defined in the current solution, try building the solution and adding the service reference again.asmx web reference:There was an error downloading 'address ... .asmx'. The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF There was an error downloading 'address ... .asmx/$metadata'.The server committed a
I'm currently trying to work out the best way to build this web application, which will then be intergrated on other systems, such as WinForms, Intranets etc.
We hope to include the usual layers i.e. DAL, BLL, BOL and UI but I have been experimenting with Entity Framework 4 and WCF Data Services and managed to get something in place where I was using WCF as a gateway to EF4.
i.e. Adding a Service Reference to my project and then using the EF4 context and writing LINQ queries against the DB
e.g.[Code]....
Now with the current setup I would still need to write a DAL Class Library, that interacts with the Data Service, because as I said WCF Data Services only seems to be a gateway, I can't see where to put the code (above) in the Data Service and then how I could these methods.
My questions are: 1. How do I develop a WCF Data Service in such a way to allow this behaviour - I know how I could do it using ASMX web service, something like [Code]....
2. If I am to use WCF Data Services, how is serialization handled (if at all) - again I know how to do something in ASMX web services
3. Again, If I am to use WCF, how do I add Security and only allow my applications to access the web service - for obvious reasons
4. Would it be possible / logical to also include the Business Logic Layer into the web service?
How to create an instance of web service without adding web service reference? How to identify the server address/name where the web service is hosted from C# code?
I have a number of .Net web sites built in VS2010 using Framework 4.0that reference a web service to send emails.
My most recent site I created as a web application as opposed to a web site. In the Solution Explorer you can add a 'Service Reference' and, if you click the Advanced button you can then add a reference to a web service.
I did that and now the (web application) site won't build - it says it cannot load the Ajax dll. If I remove the reference to the web service, the site builds okay - if I add the reference back in, the site will not build.
Do I need to abandon the idea of using a 'Web Application' and turn it into a 'Web Site'?
I am getting an error when i try to add a service reference of a WCF service. Error details is below. My web service is hosted on a different server and my client is on different server. When i run the service directly from IE i can see the service but adding it in .net web application i get error.
I am adding a reference of class library in web service in VS2008 and it is not copying the .config file from class library to web service. I have checked the property "Copy to output directory" of .config file and its value is "Copy Always".
I have a method in wcf which returns stream of custom object. I need to deserialize this stream at client side, but my custom class which is exposed as data contract is not visible through client proxy. When I add a dummy operation contract which returns the custome object I am able to get this custom class. I dont want to write this dummy method as there are many such custom classes.
Is there any way to expose data contract without writing any operation contract that returns or accepts data contract type object?
Can some explain me the difference between Message Contract and DataContract .i'm new to wcf.. so please give the brief explanation or provide me some code snippets
I am a bit new to ASP.Net Ajax and as such new to Ajax itself. I have a site which uses ASP.Net Ajax. It used the version AjaxControlToolkit version 3.0.30512.0. I have now changed it to version 3.5.40412.2 by deleting the old reference and adding a reference to the latest one . I build the soultion and everything appears fine witjhout any errors. But the site fails to load showing a yellow page with the message AjaxControlToolkit Version="3.5.40412.2" missing reference to 'AjaxControlToolkit.ExtenderBase.Base Scripts.js.BaseScripts.js'. What does this mean ?
i have added a service reference but i am unable to access the methods, there is a method call "GetContactById" which i can see when i add the service but i am unsure how i can get to this in code. i have tried creating an instance first but i get this error
Error 116 Core.omnetService.OMWCoreSoap' is a 'type', which is not valid in the given context
omnetService.OMWCoreSoap test = omnetService.OMWCoreSoap(); test.GetContactById(strKey, UserId.ToString());
when svc.getLookupList(reqobj) will call i get following error.
"There was no endpoint listening at http://rets.newjerseymls.com/rets that could accept the message. This is often caused by an incorrect address or SOAP action."
we have an existing ASP.net application that is undergoing expansion. The new functionality is all written in Silverlight 4. As part of that expansion I gutted all the old Linq to SQL and put Entity Framework 4 into place. To do this I created a standard .net Class Library and added my edmx files there. Naturally, the business entities created by this cannot be used in Silverlight. So I created a Silverlight Class Library and added all the business entities to that Silverlight Class Library as linked files. I changed the name space to be the same.
So I have the following assembly / namespaces
Company.Project.Dal.csproj / Company.Project.Entities (.net 4 class library)
Company.Project.Entities.csproj / Company.Project.Entities (SL4 class library)
With this architecture I was able to share my business entities with my SL enabled web services, my asp.net projects, my silverlight projects. Really it's a beautiful thing.
Once this was done I added "message" classes to Company.Project.Dal and again shared them with the other entites using linked files. These messages are things like MyObjectRequest; they are classes that have properties that can set to the ID of the record in the database you want to get, a search string for filtering by last name, first name, etc. (This is in the style of the Web Service Factory if you're familiar with that.)
Finally I turned the whole message into a generic using a base class called EntityRequest
[code]...
I corrected this error and everything went well for a week until I had to make my first change to the service interface. I added a new operation contract, clicked the handy Update Service Reference on my client and boom.
3) Finally adding the reference of service contract project in a Hosting project (Console Application) with complete configurations.
I am adding one more windows app project as a client.When i am trying to add the service reference using the address "http://localhost:8000/Tasks", VS 2008 displays the below error.
There was an error downloading 'http://localhost:8000/Tasks'.
Unable to connect to the remote server
No connection could be made because the target machine actively refused it 127.0.0.1:8000
Metadata contains a reference that cannot be resolved: 'http://localhost:8000/Tasks'.
Could not connect to http://localhost:8000/Tasks. TCP error code 10061: No connection could be made because the target machine actively refused it 127.0.0.1:8000.
Unable to connect to the remote server
No connection could be made because the target machine actively refused it 127.0.0.1:8000
If the service is defined in the current solution, try building the solution and adding the service reference again.
When you use ASP.NET web site (instead of web application model) and add reference to an assembly from local folder, Visual Studio, it seems, understands that this local assembly is also in GAC and so does NOT copy this assembly to bin folder (as it does with non-GAC assemblies), but simply adds new record in web.config file.
Why such a behaviour? Is it possible to force copy to bin folder (I need this since .dll is not on target environment)? I can add assembly to bin folder as file and it will work, but in this case bin folder contents will be in source control, which is not good.
I have just recently converted my VB code to C# and now having this error when I try to add an item to my listbox, and the value is coming from the item page. I get the error at this segement:
lstboxCart.Items.Add(cartItem.Display());
My listbox is supposed to add the product's name, quantity, and price onto one row.
Here's what I have so far:
[code]...
[Code]....
[Code]....
My guess is that the source of the problem could be in the foreach loop from my cart class, shouldn't I be using that for arrays only? If I need to post any markup code or any other class, let me know.
when i am adding service reference the Following erro shows Up..where as the same works on the Other machine. The url when tested in Internet explorer works but only while adding shows the error. The request failed with HTTP status 403: Forbidden. The HTTP request was forbidden with client authentication scheme 'Anonymous'.
I could really use some help on this one. I've been fighting it now for several days and we are supposed to start testing early next week.I am subscribing to 4 web services all hosted by the same company. The integration with 1, 2 and 3 all went fine, but on the fourth I keep getting the very unhelpful error:
System.Web.Services.Protocols.SoapException = {"Server was unable to process request. ---> Object reference not set to an instance of an object."} [code]...
