private void CopyContentFrom(HelloWorldCollection sourceObject)
 {
     CollectionContent = sourceObject.CollectionContent;
             _unmodified_CollectionContent = sourceObject._unmodified_CollectionContent;
 }
 public static HelloWorldCollection CreateDemoDefault()
 {
     HelloWorldCollection customDemo = null;
             HelloWorldCollection.CreateCustomDemo(ref customDemo);
             if(customDemo != null)
                 return customDemo;
             var result = new HelloWorldCollection();
             result.CollectionContent.Add(HelloWorldObject.CreateDemoDefault());
             //result.CollectionContent.Add(HelloWorldObject.CreateDemoDefault());
             //result.CollectionContent.Add(HelloWorldObject.CreateDemoDefault());
             return result;
 }
partial         static void CreateCustomDemo(ref HelloWorldCollection customDemoObject);
 public static HelloWorldCollection CreateDefault()
 {
     var result = new HelloWorldCollection();
             return result;
 }