How I can return string, int, or bool from a Domain Service

[Invoke]
public int InsertNFe_C_emit(NFe_C_emit nFe_C_emit)
{
    NFe_C_emitBLL _NFe_C_emitBLL = new NFe_C_emitBLL();
    return _NFe_C_emitBLL.Inserir(nFe_C_emit).Value;
}

It not accepts  return _NFe_C_emitBLL.Inserir(nFe_C_emit).Value;
Something are returning, But I cant convert.

look the error:

Cannot implicitly convert type 'System.ServiceModel.DomainServices.Client.InvokeOperation<int>' to 'int'

It not accepts  return _NFe_C_emitBLL.Inserir(nFe_C_emit).Value;
Something are returning, But I cant convert.

look the error:

Cannot implicitly convert type 'System.ServiceModel.DomainServices.Client.InvokeOperation<int>' to 'int'

(XAML.cs)
        private void btnIncluir_Click(object sender, RoutedEventArgs e)
        {
            pNFe_C_emit("I", 1000, "78749991000105", "35965355904", "Plexo Informática Ltda", "Plexo");
        }

(DOMAIN SERVICE)
        [Invoke]
        public void InsertNFe_C_emit(NFe_C_emit nFe_C_emit)
        {
            NFe_C_emitBLL _NFe_C_emitBLL = new NFe_C_emitBLL();
            _NFe_C_emitBLL.Inserir(nFe_C_emit);
        }

(BLL)
        public int Inserir(NFe_C_emit _NFe_C_emit)
        {
            db.AddToNFe_C_emit(_NFe_C_emit);
            db.SaveChanges();
            return _NFe_C_emit.ID_Plexo;
        }

when you tried my code what is the error it gave ??

Hi gauthampj

When I tried your code, I had the following error:

'int' does not contain a definition for 'Value' and no extension method 'Value' accepting a first argument of type 'int' could be found (are you missing a using directive or an assembly reference?)

        [Invoke]
        public int InsertNFe_C_emit(NFe_C_emit nFe_C_emit)
        {
            NFe_C_emitBLL _NFe_C_emitBLL = new NFe_C_emitBLL();
            return _NFe_C_emitBLL.Inserir(nFe_C_emit).Value;
        }

    public class NFe_C_emitBLL
    {
        private static NFeEntities db = new NFeEntities();
        public int Inserir(NFe_C_emit _NFe_C_emit)
        {
            db.AddToNFe_C_emit(_NFe_C_emit);
            db.SaveChanges();
            return _NFe_C_emit.ID_Plexo;
        }

which line did you say the error was on.. can you post just that line ?

Hi gauthampj
The error happens in Highlights line.
Domain Service
 [Invoke]
        public int InsertNFe_C_emit(NFe_C_emit nFe_C_emit)
        {
            NFe_C_emitBLL _NFe_C_emitBLL = new NFe_C_emitBLL();
           return _NFe_C_emitBLL.Inserir(nFe_C_emit);
       }

Class BLL
 public class NFe_C_emitBLL
    {
        private static NFeEntities db = new NFeEntities();
        public int Inserir(NFe_C_emit _NFe_C_emit)
        {
            db.AddToNFe_C_emit(_NFe_C_emit);
            db.SaveChanges();
            return _NFe_C_emit.ID_Plexo;
        }
    }

Thanks