Dynamic Types with Interfaces

public class Foo{
  public void Bar(){
    var fieldValue = new {
                          ParentKey = "something",
                          SectionKey = "section",
                          FieldKey = "field",
                          LabelKey = "label"
                        } : IFieldValue;
    
  } 
}


public interface IFieldInfo : IFieldValue
{
    string ParentKey { get; set; }
    string SectionKey { get; set; }
    string FieldKey { get; set; }
    string LabelKey { get; set; }
}