c# - Ria Services and navigation property issues -

i'm encountering issue using silverlight4, ria services , entity framework.

from sl client try data through ria services, in domainservice class method gets called:

public iqueryable<lastminutewachtlijstpromotie> getlastminutewachtlijstpromoties(){   iqueryable<lastminutewachtlijstpromotie> list = (iqueryable<lastminutewachtlijstpromotie>)this.objectcontext.lastminutewachtlijstpromoties.include("promotie");    return (from lastminutewachtlijstpromotie lwmp in list lwmp.actief select lwmp); } 

when check contents of list, in debug mode, it's filled objects of type lastminutewachtlijstpromotie. these objects have navigation property object named promotie. , can access properties of these promotie objects.

on silveright client method gets invoked when loading complete:

public void onloadentitiescompleted(serviceloadresult<t> result) {  } 

in method requested lastminutewachtlijstpromotie objects expected, property promotie null.

i have set [include] tag on property promotie in auto generated metadata class , use .include("promotie")

these same methods used different objects domain model, works perfectly. also, cannot seem find differences in .edmx file database mappings , navigation properties.

has encountered same issue or know solution it?

the metadata classes:

[metadatatypeattribute(typeof(lastminutewachtlijstpromotie.lastminutewachtlijstpromotiemetadata))]         public partial class lastminutewachtlijstpromotie         {              // class allows attach custom attributes properties             // of lastminutewachtlijstpromotie class.             //             // example, following marks xyz property             // required property , specifies format valid values:             //    [required]             //    [regularexpression("[a-z][a-za-z0-9]*")]             //    [stringlength(32)]             //    public string xyz { get; set; }             internal sealed class lastminutewachtlijstpromotiemetadata             {                  // metadata classes not meant instantiated.                 private lastminutewachtlijstpromotiemetadata()                 {                 }                  public int alertid { get; set; }                  public string artikelnummer { get; set; }                  public nullable<int> artikelvariant { get; set; }                  public int lastminutewachtlijstpromotieid { get; set; }                  [include]                 public promotie promotie { get; set; }                  public int promotieartikelid { get; set; }                  public int promotieid { get; set; }                  public bool actief { get; set; }                  public datetime aanmaakdatum { get; set; }             }         }           [metadatatypeattribute(typeof(promotie.promotiemetadata))]     public partial class promotie     {          // class allows attach custom attributes properties         // of promotie class.         //         // example, following marks xyz property         // required property , specifies format valid values:         //    [required]         //    [regularexpression("[a-z][a-za-z0-9]*")]         //    [stringlength(32)]         //    public string xyz { get; set; }         internal sealed class promotiemetadata         {              // metadata classes not meant instantiated.             private promotiemetadata()             {             }              public string actietype { get; set; }              public string assortimentsmanagernaam { get; set; }              public string assortimentsmanagerteamids { get; set; }              [display(name = "commerciele tekst")]             [required(errormessageresourcename = "required", errormessageresourcetype = typeof(nokavision.reclamefolder.ui.web.resources.validationresources))]                         public string commercieletekst { get; set; }              [display(name = " ")]             public string commercieletekstdetails { get; set; }              [include]             public frame frame { get; set; }              public nullable<int> frameid { get; set; }              public nullable<datetime> lastminutewijzigingsdatum { get; set; }              public string opmerkingen { get; set; }              [display(name = "op wachtlijst")]             public nullable<bool> opwachtlijst { get; set; }              //public nullable<int> promotiecopyid { get; set; }              public int promotieid { get; set; }              [include]             public entitycollection<promotieleverancier> promotieleveranciers { get; set; }              [include]             public entitycollection<promotiemutatie> promotiemutaties{ get; set; }              //public nullable<int> promotieorigineleid { get; set; }              [include]             public entitycollection<promotiesymbool> promotiesymbolen { get; set; }              public string status { get; set; }              [display(name = "promotie inhoud")]             public string promotieinhoud { get; set; }              [display(name = "promotie eenheid")]             public string promotieeenheid { get; set; }              [display(name = "promotie prijs")]             public decimal promotieprijs { get; set; }         }     } 

add composition attribute property promotie property of lastminutewachtlijstpromotiemetadata class. should work.

public partial class lastminutewachtlijstpromotie {   internal sealed class lastminutewachtlijstpromotiemetadata{     [include]     [composition]     public promotie promotie { get; set; }   } }