Problem with INotifyPropertyChanged ?

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C#

ASP.NET

C#5.0

Hi,
I am facing the problem in reading the "INotifyPropertyChanged" property value.
This is my method to get some information

public string GetInformation()
{
   RequestObject request = new RequestObject();
   /*
          ...some code here to initialize request object...
       */
   ResponseObject response = service.GetInformation(request);
}

And my ResponseObject is

public class ResponseObject:object, System.ComponentModel.INotifyPropertyChanged {
 {
    private ErrorObject errorField;

    public ErrorObject Error {
            get {
                return this.errorField;
            }
            set {
                this.errorField = value;
                this.RaisePropertyChanged("Error");
            }
        }

    public EntityResponse Results {
            get {
                return this.resultsField;
            }
            set {
                this.resultsField = value;
                this.RaisePropertyChanged("Results");
            }
        }
 }

At the time of debugging response object contains Result property that contains list of

ServiceObject // i.e. List<ServiceObject>

I want to read the value ImageCode of each ServiceObject of this list. And ServiceObject class is

public partial class ServiceObject : object, System.ComponentModel.INotifyPropertyChanged {
     private string imgCodeField;
     public string ImageCode {
          get {
              return this.imgCodeField;
          }
          set {
              this.imgCodeField = value;
              this.RaisePropertyChanged("ImageCode ");
          }
      }
}

I don't know how to access List<serviceobject> to read, because at the time writing code there is not any property that contains List<serviceobject>, It appears at run time.
Please help me. How can I access the values of List<serviceobject>