从C＃将参数传递到WCF REST

Question

I have to pass the parameters to the WCF service that i created. When i tried to pass it as a QueryString it throwed me " 404 Not found ".

//Code:

string Service = ""http://localhost:58092/Service1.svc/DataService/LoadAllColumnData?Id=1";
WebRequest wreq = WebRequest.Create(Service);

WebResponse wres = wreq.GetResponse();

DataContractSerializer coll = new DataContractSerializer(typeof(DataServiceProxy.GdColumns));                      
var arrProd = coll.ReadObject(wres.GetResponseStream());

//WCF Code:

[ServiceContract]
public interface IDataService
{             
     [OperationContract]
     [WebGet(BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "LoadAllColumnData/{Id}")]
     IList<GdColumns> LoadAllColumnData(string Id);
}

How to do this?

Answer 1

In your string Service you specify a querystring LoadAllColumnData?Id=1 ... but in your UriTemplate = "LoadAllColumnData/{Id}" you have no querystring... you have defined that the URL will hold the parameter.

Change your service url as follows and it should work...

string Service = ""http://localhost:58092/Service1.svc/DataService/LoadAllColumnData/1";

To use the querystring...

[WebInvoke(Method = "GET",
    BodyStyle = WebMessageBodyStyle.WrappedRequest,
    UriTemplate = "LoadAllColumnData?Id={Id}")]
IList<GdColumns> LoadAllColumnData(string Id);

To use the URL...

[WebInvoke(Method = "GET",
    BodyStyle = WebMessageBodyStyle.WrappedRequest,
    UriTemplate = "LoadAllColumnData/{Id}")]
IList<GdColumns> LoadAllColumnData(string Id);

Edit: Changed POST to GET as Derek pointed out.