WCF possibly serialization related issue - wcf

Question

On server I have the following class
public class A
{
string a1 {get; set ;}
string a2 {get; set;}
}
I have defined a service with the following operation contract
[OperationContract]
public list<A> GetAll()
{
return new List<A> {new A {a1="1", a2="2"}, new A{a1="3", a2="4"}};
}
in the reference there is defined a shallow copy of A in the following way
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")]
[System.Runtime.Serialization.DataContractAttribute(Name="GetAll", Namespace="http://schemas.datacontract.org/2004/07/SomeModel")]
[System.SerializableAttribute()]
public partial class A: object, System.Runtime.Serialization.IExtensibleDataObject, System.ComponentModel.INotifyPropertyChanged {
[System.NonSerializedAttribute()]
private System.Runtime.Serialization.ExtensionDataObject extensionDataField;
[System.Runtime.Serialization.OptionalFieldAttribute()]
private string A1Field;
[System.Runtime.Serialization.OptionalFieldAttribute()]
private string A2Field;
[global::System.ComponentModel.BrowsableAttribute(false)]
public System.Runtime.Serialization.ExtensionDataObject ExtensionData {
get {
return this.extensionDataField;
}
set {
this.extensionDataField = value;
}
}
[System.Runtime.Serialization.DataMemberAttribute()]
public string A1{
get {
return this.A1Field;
}
set {
if ((object.ReferenceEquals(this.A1Field, value) != true)) {
this.A1Field= value;
this.RaisePropertyChanged("A1");
}
}
}
[System.Runtime.Serialization.DataMemberAttribute()]
public string A2{
get {
return this.A2Field;
}
set {
if ((object.ReferenceEquals(this.A2Field, value) != true)) {
this.A2Field= value;
this.RaisePropertyChanged("A2");
}
}
}
public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
protected void RaisePropertyChanged(string propertyName) {
System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
if ((propertyChanged != null)) {
propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
}
}
}
On the client I call the service.GetAll() and I use the shallow copy of A, defined in the proxy which defines my model for a view. the call is something similar to
ActionResult GetAll()
{
List<A> allAs = service.GetAll();
return new View (allAs);
}
However the list on the client is always emtpy. What is the problem?

Answer 1

You should define your data class, A as a datacontract:
[DataContract]
public class A
{
[DataMember]
public string a1 {get; set ;}
[DataMember]
public string a2 {get; set ;}
}

Answer 2

On the class you will need DataContract attribute from System.Runtime.Serialization.DataContractAttribute namespace.
Some thing like this
[DataContract]
public class A
{
[DataMember]
public string a1 {get; set ;} //This should be public
[DataMember]
public string a2 {get; set;}//This should be public
}
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