Consuming WCF Data Services Action Provider for Entity Framework -

i have dataservice class on top of entity framework 5 dbcontext:

public class mydataservice : dataservice<mydbcontext>, iserviceprovider {      [webget]     public iqueryable<product> getproducts1(int category)     {         return p in this.currentdatasource.products                p.category == category                select p;     } } 

now want expose methods dbcontext dataservice , used sample code: http://efactionprovider.codeplex.com/

public class mydbcontext : dbcontext {     public dbset<product> products { get; set; }      [nonbindableaction]     public iqueryable<product> getproducts2(int category)     {         return p in this.currentdatasource.products                p.category == category                select p;     }  } 

accessing http://localhost:12345/mydataservice.svc/$metadata show both methods known, first 1 hat am:httpmethod="get"` attribut

<entitycontainer name="mydbcontext" m:isdefaultentitycontainer="true">     ...     <functionimport name="getproducts1" returntype="collection(mynamespace.product)" entityset="products" m:httpmethod="get">         <parameter name="category" type="edm.int32" nullable="false"/>     </functionimport>     <functionimport name="getproducts1" returntype="collection(mynamespace.product)" entityset="products">         <parameter name="category" type="edm.int32" nullable="false"/>     </functionimport>     ... 

i can execute getproducts1 accessing url

http://localhost:12345/mydataservice.svc/getproducts1?category=1 

that doesn't work getproducts2 (propably because of not allowed) managed execute getproducts2 using fiddler:

post: http://localhost:12345/mydataservice.svc/getproducts1 request headers:     user-agent: fiddler     host: localhost:12345     content-length: 12     content-type: application/json  request body:     {category:1} 

ok, here problem: consume service windows application using service reference. since code generation in dataservicecontext derived class not cover actions need call them myself.

for first 1 (getproducts1) can do:

    public ienumerable<product> getproducts1(int category)     {         var proxy = new mydataservicecontext(             "http://localhost:12345/mydataservice.svc");         var querystring = string.format("{0}/getproducts1?category={1}",             proxy.baseuri, category);         var uri = new uri(querystring, urikind.relativeorabsolute);         return proxy.execute<product>(uri);     } 

but struggling second one. tried:

    public ienumerable<product> getproducts2(int category)     {         var proxy = new mydataservicecontext(             "http://localhost:12345/mydataservice.svc");         var querystring = string.format("{0}/getproducts2",             proxy.baseuri);         var uri = new uri(querystring, urikind.relativeorabsolute);         return proxy.execute<product>(uri, "post", false,              new urioperationparameter("category", category));     } 

but dataserviceclientexception: content-type-header value missing. (status-code 400)

is there way call method using execute method? prefer continue using dataservicecontext , not make raw requests myself.

thanks in advance

btw.

i using visual studion 2010 , microsoft.data.services , microsoft.data.services.client packages nuget rather default system.data.services dlls, because believe need set config.dataservicebehavior.maxprotocolversion = dataserviceprotocolversion.v3; executing actions in first place.

try using bodyoperationparameter instead of urioperationparameter. action parameters included in request body instead of uri.